More information: With over 1.1 million copies sold during its debut week, Adele's "Hello" reigns well above the second track on the list - Flo Rida's "Right Round" - for the song to sell the most downloads in a single week.
Answer: Jennifer Lopez
More information: Before she was an accomplished singer or actress, Jennifer Lopez was actually a dancer on the Wayans Brothers' television program In Living Color during the early 1990's.
Answer: The Buggles
More information: On 1 August 1981 a music video by the Buggles', ironically entitled "Video Killed the Radio Star", became the first one ever aired on MTV.
More information: The opening sequence to the hilarious Get a Life featured the memorable rock song "Stand" by R.E.M.
More information: Justin Timberlake left NSYNC when the group disbanded in 2002 and went on to become one of the top-selling musicians in history on his own.
More information: AC/DC was founded in 1973 in Sydney, Australia by brothers Malcolm and Angus Young.
Answer: Ozzy Osbourne
More information: Former Black Sabbath frontman Ozzy Osbourne did so in 1981, reportedly in intoxicated celebration of signing his first solo deal.
Answer: Guns N' Roses
More information: Guns N' Roses hit the music scene in 1987 with their debut album "Appetite for Destruction" which eventually hit number-one on the Billboard 200, albeit a year after its release.
Answer: The Monkees
More information: Peter Tork was a founding member of the Monkees, a 1960's band that is famous for producing hit music as well as starring in a very-popular television show.