Pop stars come and go, but numbers never lie. Here's a look at who's blowing up on the charts right now — and who's merely imploding.

By Kyle Anderson
Updated November 16, 2012 at 05:00 AM EST

Taylor Swift
Her ex-boyfriends may be seeing Red, but everyone else is buying it: With her latest, Swift became the first female to move more than a million debut-week units twice (she also did it with 2010’s Speak Now). And Red hit 1.5 million in just two weeks, making it the second-biggest 2012 seller behind Adele’s 2011 holdover 21.

Kendrick Lamar and Meek Mill
Though the blog-rap faves got hot giving away their best stuff online, Lamar’s good kid, m.A.A.d. city shifted a whopping 242,000 copies out of the gate and Mill’s Dreams and Nightmares did 165,000 a week later.

Rod Stewart
Stewart’s Merry Christmas, Baby beat out other holiday offerings from the likes of Blake Shelton, Colbie Caillat, and Cee Lo. Ya do think he’s yuletide sexy! Or at least HSN watchers do — his appearance on an Oct. 26 special on the shopping channel helped boost first-week sales, which totaled 88,000.

Maroon 5
They just released a new single, but the band’s current hit, ”One More Night,” has now logged eight straight weeks atop the Hot 100—twice as long as their previous reign with ”Moves Like Jagger.”

Christina Aguilera
Don’t call it a comeback. ”Your Body,” the lead single from the once-dominant chart star’s new Lotus, peaked at an underwhelming No. 34 on the Hot 100, and quickly fell off from there.

No Doubt
Push and Shove‘s first single, ”Settle Down,” failed to crack the top 10 on any genre chart, and the band pulled the culturally insensitive cowboys-and-Indians video for ”Looking Hot” only hours after its premiere.

Always the bridesmaid, the K-pop star rocketed up the Hot 100 on the back of his zeitgeisty smash ”Gangnam Style” but hasn’t captured the top spot. Still, he continues to dominate the iTunes chart and has sold 2 million-plus downloads.