Your guide to who's burning up (and flaming out) on the charts

Carly Rae Jepsen, fun., Gotye ”Call Me Maybe,” ”We Are Young,” and ”Somebody That I Used to Know” have collectively held the top Hot 100 spot for 21 weeks in 2012 — especially impressive, considering that they’re all debut singles.
Nas The rap vet scored his sixth No. 1 album with Life Is Good, 18 years after his debut.
Cher Lloyd The bratty Brit import has followed fellow X Factor alums One Direction to U.S. success. Her stomping ”Want U Back” recently jumped into the top 20.
One Direction Speaking of the boy-banders, their Up All Night is the first 2012 release to pass one million in sales.
Jason Aldean His ”Take a Little Ride” earned huge first-week numbers; it was downloaded 189,000 times, beating out the likes of Katy Perry and Maroon 5.
Pink ”Blow Me (One Last Kiss)” became her 12th top 10 single after jumping from No. 58 to No. 9 in one week.
Phil Collins Against all odds, a one-day 99-cent sale on Amazon sent his …Hits comp to No. 6 on the Billboard 200 albums chart — a staggering 4,575 percent sales increase

Nelly Furtado The ’00s chart star’s comeback single ”Big Hoops (Bigger the Better)” hardly registered. Her hopes may now be pinned on follow-up ”Spirit Indestructible.”
The Wanted America sent out a welcome wagon for the U.K. fivesome’s No. 3 hit ”Glad You Came,” but next single ”Chasing the Sun” has yet to crack the U.S. top 50.

Flo Rida The club kingpin moves singles (current smashes ”Wild Ones” and ”Whistle” have 4 million-plus downloads between them) but not albums. His latest has sold nearly 53,000 units in three weeks.