Question:
The Brown Eyed Girls (Hangul: beuraun aideu geolseu, Japanese: buraunaidogaruzu), often abbreviated as B.E.G., BG or beuageol (beu-ah-geol) is a South Korean girl group managed by Mystic Entertainment. The group consists of four members: JeA, Miryo, Narsha, and Gain. They debuted as an R&B/Ballad vocal group with "Come Closer (dagawaseo)" in 2006 and have since challenged themselves with a notable variety of different music genres. They rose to popularity in 2008 with "L.O.V.E" and their retro-dance number "How Come," and cemented their position in the K-pop world in 2009 with "Abracadabra", with its electronica-based genre, pioneering (albeit controversial) concept, along with its iconic and now globally recognized dance entitled 'The Arrogant Dance (sigeonbangcum)'--successfully ingraining themselves into modern popular culture.
The group's leader, Jea, was the one responsible of the group's creation and was actively involved in the selection of the other members, picking out Miryo, who was known as a great female rapper from the hip-hop community having previously worked with other fellow rappers, such as Gil Seong-joon from Leessang, and the main female rapper in well-known hip-hop group Honey Family. Narsha was chosen when Jea remembered her as a "talented singer" from her high school days, and Ga-in was selected by the three members after she was eliminated from "Battle Shin Hwa." According to Ga-in, she was crying in the bathroom after failing the audition, was found by composer Ahn Jung Hoon, and then was chosen through the audition in Brown Eyed Girls' company. Singer Yoari trained with the group until 2006, when it was decided she would be the lead singer for Sprinkler. The four members held several small size concerts, and was actually known as "Crescendo" before officially debuting as "Brown Eyed Girls."  After more than 3 years of training in singing and holding several small size concerts, the Brown Eyed Girls released their debut album Your Story in South Korea on March 2, 2006, with the ballad track, "Come Closer" as their single. Debuting as a "faceless group" they did not appear on any visual media and chose to not even appear in their own music video. The album was well received by critics but did not do as well as expected commercially. The album was later re-released to include "Hold The Line" (which samples "Push The Button" by British girl band Sugababes and "Technologic" by Daft Punk). This song became a hit, further boosting the band's popularity. "Hold the Line" was disclosed across the world because it was included in the list of songs from the game Pump it Up.  After a short break, the group went back into the studio to work on their second album Leave Ms. Kim (ddeonara miseugim), which included their R&B title track "You Got Me Fooled" (neoege sogassda). Subsequent singles were "Oasis" (oasiseu) featuring Lee Jae Hoon and "It's Mine" (naeggeoya), a collaboration with fellow group SeeYa.  During the break between their debut and second albums, the Brown Eyed Girls released their first digital single entitled "I Am a Summer" (naega yeoreumida), which was later included in their second LP.  The first two albums contained typical R&B ballads which had been very popular in the K-pop scene. However, the commercial success was relatively higher in two singles between the first and second albums. Moreover, the second album containing "You Got Me Fooled" (neoege sogassda) was released at nearly the same time as Wonder Girls' "Tell Me" which received a nationwide success in Korea. Therefore, their second album was once again a commercial disappointment. At the same time, the general K-pop scene was changing from R&B ballads to dance music.
Answer this question using a quote from the text above:

What is a single from the album?

Answer:
which included their R&B title track "You Got Me Fooled" (neoege sogassda).

Answer the question at the end by quoting:

The Joker is a fictional supervillain created by Bill Finger, Bob Kane, and Jerry Robinson who first appeared in the debut issue of the comic book Batman (April 25, 1940), published by DC Comics. Credit for the Joker's creation is disputed; Kane and Robinson claimed responsibility for the Joker's design, while acknowledging Finger's writing contribution. Although the Joker was planned to be killed off during his initial appearance, he was spared by editorial intervention, allowing the character to endure as the archenemy of the superhero Batman. In his comic book appearances, the Joker is portrayed as a criminal mastermind.
The Joker was one of the few popular villains continuing to appear regularly in Batman comics from the Golden Age into the Silver Age, as the series continued during the rise in popularity of mystery and romance comics. In 1951, Finger wrote an origin story for the Joker in Detective Comics #168, which introduced the characteristic of him formerly being the criminal Red Hood, and his disfigurement the result of a fall into a chemical vat.  By 1954, the Comics Code Authority had been established in response to increasing public disapproval of comic book content. The backlash was inspired by Frederic Wertham, who hypothesized that mass media (especially comic books) was responsible for the rise in juvenile delinquency, violence and homosexuality, particularly in young males. Parents forbade their children from reading comic books, and there were several mass burnings. The Comics Code banned gore, innuendo and excessive violence, stripping Batman of his menace and transforming the Joker into a goofy, thieving trickster without his original homicidal tendencies.  The character appeared less frequently after 1964, when Julius Schwartz (who disliked the Joker) became editor of the Batman comics. The character risked becoming an obscure figure of the preceding era until this goofy prankster version of the character was adapted into the 1966 television series Batman, in which he was played by Cesar Romero. The show's popularity compelled Schwartz to keep the comics in a similar vein. As the show's popularity waned, however, so did that of the Batman comics. After the TV series ended in 1968, the increase in public visibility had not stopped the comic's sales decline; editorial director Carmine Infantino resolved to turn things around, moving stories away from schoolboy-friendly adventures. The Silver Age introduced several of the Joker's defining character traits: lethal joy buzzers, acid-squirting flowers, trick guns, and goofy, elaborate crimes.

What was the Silver Age?
The Silver Age introduced several of the Joker's defining character traits: