Question:
Celine Marie Claudette Dion,  ChLD (; French: [selin djo]; born 30 March 1968) is a Canadian singer. Born into a large family from Charlemagne, Quebec, Dion emerged as a teen star in the French-speaking world after her manager and future husband Rene Angelil mortgaged his home to finance her first record. Dion first gained international recognition in the 1980s by winning both the 1982 Yamaha World Popular Song Festival and the 1988 Eurovision Song Contest where she represented Switzerland.
In an interview with People magazine published in February 2010, Dion announced that she would be returning to Caesars Palace in Las Vegas for Celine, a three-year residency for seventy shows a year, beginning 15 March 2011. She stated that the show will feature, "all the songs from my repertoire that people want to hear" and will contain a selection of music from classic Hollywood films. To promote her return to Las Vegas, Dion made an appearance on The Oprah Winfrey Show on 21 February, during the show's final season, marking her record twenty-seventh appearance. Additionally, for a record sixth time, Dion performed at the 83rd Academy Awards, where she sang the song "Smile", as part of the ceremony's "In Memoriam" segment. On 4 September, Dion appeared on the 2011 MDA Labor Telethon Event and presented a prerecorded performance of "Open Arms" from her new Las Vegas show. On 1 October 2011, the OWN Network premiered a documentary on Dion's life, detailing the months before, during and after her pregnancy, to the makings of her new Las Vegas Show, called, "Celine: 3 Boys and a New Show". The documentary became the second highest rated show on TV OWN Canada. In October, FlightNetwork.com conducted a poll asking 780 participants which celebrity they would most like to sit next to on an airplane. Dion was the top favourite, with 23.7% of the vote. Also, in September, Dion released the 14th perfume from her Celine Dion Parfums Collection, called "Signature". On 15 September, Dion made an appearance at the free concert of world-famous tenor, Andrea Bocelli, in Central Park in New York. In 2012, she performed at the 16th Jazz and Blues Festival in Jamaica.  In October 2012, Sony Music Entertainment released The Best of Celine Dion & David Foster in Asia. Dion began recording songs for her next English and French albums during April and May 2012. The French-language album, Sans attendre was released on 2 November 2012, and was a smash success in all French-speaking territories, especially in France where it achieved diamond status. The English-language album was postponed to 1 November 2013. Titled Loved Me Back to Life, it included collaborations with an exceptional team of songwriters and producers, including duets with Ne-Yo and Stevie Wonder. The lead single, "Loved Me Back to Life" was released on 3 September 2013. Dion embarked on the Sans attendre Tour in November 2013 and performed in Belgium and France. "Breakaway", "Incredible" and "Water and a Flame" were chosen as next singles. The music video for "Incredible" was uploaded onto Dion's official Vevo channel in early June 2014.  On 16 May 2014, Dion released a three-disc set (2CD/DVD and 2CD/Blu-ray) titled Celine une seule fois / Live 2013, which reached top ten on the album charts in France, Canada and Belgium Wallonia.
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Are any of these songs number 1 hits?

Answer:
was a smash success in all French-speaking territories, especially in France where it achieved diamond status.


Question:
Nasir bin Olu Dara Jones was born on September 14, 1973, in Brooklyn, New York. His father, Olu Dara (born Charles Jones III), is a jazz and blues musician, from Mississippi. His mother, Fannie Ann (Little) Jones, was a Postal Service worker from North Carolina. He has one sibling, a brother named Jabari Fret who is best known as "Jungle", a member of the hip-hop group Bravehearts.
Columbia Records began to press Nas to work towards more commercial topics, such as that of The Notorious B.I.G., who had become successful by releasing street singles that still retained radio-friendly appeal. In 1995, Nas did guest performances on the albums Doe or Die by AZ, The Infamous by The Infamous Mobb Deep, Only Built 4 Cuban Linx by Raekwon and 4,5,6 by Kool G Rap. Nas also parted ways with manager MC Serch, enlisted Steve Stoute, and began preparation for his second LP, It Was Written, consciously working towards a crossover-oriented sound. It Was Written, chiefly produced by Tone and Poke of Trackmasters, was released in mid-1996. Two singles, "If I Ruled the World (Imagine That)" (featuring Lauryn Hill of The Fugees) and "Street Dreams", including a remix with R. Kelly were instant hits. These songs were promoted by big-budget music videos directed by Hype Williams, making Nas a common name among mainstream hip-hop. It Was Written featured the debut of The Firm, a supergroup consisting of Nas, AZ, Foxy Brown, and Cormega. The album also expanded on Nas's Escobar persona, who lived a Scarface/Casino-esque lifestyle. On the other hand, references to Scarface protagonist Tony Montana notwithstanding, Illmatic was more about his early life growing up in the projects.  Signed to Dr. Dre's Aftermath Entertainment label, The Firm began working on their debut album. Halfway through the production of the album, Cormega was fired from the group by Steve Stoute, who had unsuccessfully attempted to force Cormega to sign a deal with his management company. Cormega subsequently became one of Nas's most vocal opponents and released a number of underground hip hop singles "dissing" Nas, Stoute, and Nature, who replaced Cormega as the fourth member of The Firm. Nas, Foxy Brown, AZ, and Nature Present The Firm: The Album was finally released in 1997 to mixed reviews. The album failed to live up to its expected sales, despite being certified platinum, and the members of the group disbanded to go their separate ways.  During this period, Nas was one of four rappers (the others being B-Real, KRS-One and RBX) in the hip-hop supergroup Group Therapy, who appeared on the song "East Coast/West Coast Killas" from Dr. Dre Presents the Aftermath.
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How was Nas involved in the firm?

Answer:
a supergroup consisting of Nas, AZ, Foxy Brown, and Cormega.