Some context: ABBA (Swedish pronunciation: [2ab:a]) were a Swedish pop group, formed in Stockholm in 1972 by Agnetha Faltskog, Bjorn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad: the group name derives from the first letter in each of their names. They became one of the most commercially successful acts in the history of popular music, topping the charts worldwide from 1974 to 1982. ABBA won the Eurovision Song Contest 1974 at The Dome in Brighton, UK, giving Sweden its first triumph in the contest. They are the most successful group to have taken part in the competition.
In March 1976, the band released the compilation album Greatest Hits, despite having had only six top 40 hits in the United Kingdom and the United States. Nevertheless, it became their first UK number-one album, and also took ABBA into the Top 50 on the US album charts for the first time, eventually selling more than a million copies there. At the same time, Germany released a compilation named The Very Best of ABBA, also becoming a number-one album there whereas the Greatest Hits compilation followed a few months later to number-two on the German charts, despite all similarities with The Very Best album. Also included on Greatest Hits was a new single, "Fernando", which went to number-one in at least thirteen countries worldwide, including the United Kingdom, Germany and Australia, and the single went on to sell over 10 million copies worldwide. In Australia, the song occupied the top position for 14 weeks (and stayed in the chart for 40 weeks), tying with the Beatles' "Hey Jude" for longest-running number-one, and making "Fernando" one of the best-selling singles of all time in Australia. That same year, the group received its first international prize, with "Fernando" being chosen as the "Best Studio Recording of 1975". In the United States, "Fernando" reached the Top 10 of the Cashbox Top 100 singles chart and number 13 on the Billboard Hot 100. It also topped the Billboard Adult Contemporary chart, ABBA's first American number-one single on any chart.  The group's fourth studio album, Arrival, a number-one best-seller in Europe and Australia, represented a new level of accomplishment in both songwriting and studio work, prompting rave reviews from more rock-oriented UK music weeklies such as Melody Maker and New Musical Express, and mostly appreciative notices from US critics. Hit after hit flowed from Arrival: "Money, Money, Money", another number-one in Germany and Australia, and "Knowing Me, Knowing You", ABBA's sixth consecutive German number-one as well as another UK number-one. The real sensation was "Dancing Queen", not only topping the charts in loyal markets the UK, Germany and Australia, but also reaching number-one in the United States. In South Africa, ABBA had astounding success with "Fernando", "Dancing Queen" and "Knowing Me, Knowing You" being among the top 20 best-selling singles for 1976-77. In 1977, Arrival was nominated for the inaugural BRIT Award in the category "Best International Album of the Year". By this time ABBA were popular in the United Kingdom, most of Western Europe, Australia and New Zealand. In Frida - The DVD, Lyngstad explains how she and Faltskog developed as singers, as ABBA's recordings grew more complex over the years.  The band's popularity in the United States would remain on a comparatively smaller scale, and "Dancing Queen" became the only Billboard Hot 100 number-one single ABBA had there (they did, however, get three more singles to the number-one position on other Billboard charts, including Billboard Adult Contemporary and Hot Dance Club Play). Nevertheless, Arrival finally became a true breakthrough release for ABBA on the US album market where it peaked at number 20 on the Billboard 200 chart and was certified gold by RIAA.
what were some singles?
A: The real sensation was "Dancing Queen

Some context: Forsythe Pendleton "Jughead" Jones III is one of the main characters created by Bob Montana and John L. Goldwater in Archie Comics who first appeared in the first Archie story, from Pep Comics #22 (December 1941). He is the son of Forsythe Jones II; in one of the early Archie newspaper comic strips, he himself is identified as Forsythe Pendleton Jones III (and in one strip, likely due to continuity error, as Forsythe Van Jones). He has a white sheepdog named Hot Dog and a younger sister, Forsythia "Jellybean" Jones. Jughead (sometimes shortened to Jug or Juggie) is the best friend of Archie Andrews.
Jughead generally has a characteristic wry and sarcastic sense of humor. He is considered a bit of an oddity, but prefers his nonconformism as opposed to going along with others' styles. His many quirks make him the butt of teasing and abuse from Reggie, Veronica, and even other classmates and teachers. Many episodes involve Reggie and Jughead trying to outdo one another with pranks and bets, and Jughead almost always comes out the victor. He is revealed to be extremely clever and creative when necessary and he often takes advantage of Reggie's and his other tormentors' weaknesses (and has fun all the while).  In the earlier comics, a running gag involved various characters trying to discover Jughead's real name, while Jughead thwarted their efforts. In one story, Archie Andrews and Reggie Mantle go to the school office, where a woman tells them that Jughead's real first name is Steve. After Archie and Reggie leave the office, the audience learns that the woman is actually Jughead's aunt who has just lied as a favor to Jughead to help keep his real first name (Forsythe) hidden. In another story (issue #1 of "The Jughead Jones Comics Digest," June 1977) we find out he is named after his ancestor who is an American hero. For a brief time, Jughead started to use his given name in honor of his ancestor. After learning that this ancestor was married nine times, Jughead reverted to his nickname. In the Little Archie series, his real name is revealed by Miss Grundy at the start of class. He also believes his name attracts girls as in a strip,his name was mentioned and it made the girls crazed for him.  Another mystery that follows Jughead's character is the meaning of the "S" on his sweatshirt. This remains a mystery to this day, although many stories have hinted at a meaning. In Jughead #30 (1992), when his psychiatrist, Sara, asked him "why an 'S'?" he replied "I dunno! My third cousin was called skinny..." The triangular banner on the cover of issue 140 of Archie & Friends shows that the "S" stands for Silby, as in Silby High School, which he attended for a few months as a freshman. At one time after his sweater was filled with holes due to what he thought was a moth when it was actually a chemical accident caused in lab class, he reveals that he simply likes the letter S and finds it "compatible," because the letter can stand for "soup, sandwich, steak and all kinds of goodies!" after his friends ask him. Betty rolls her eyes at the explanation and adds, "S stands for "sorry I asked"!" Another theory is that he is a non-conformist so when everyone wears "R" which stands for Riverdale he just goes with the next letter "S"
Who is Jughead Jones?
A:
Jughead generally has a characteristic wry and sarcastic sense of humor.