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Katy Perry gets her Christmas present : “Firework” logs its third week atop the BIllboard Hot 100. Moving into No. 2 is Bruno Mars’ “Grenade, and will likely take over the top spot next week. Mars also has reason to celebrate as he ends the year with two songs in the top 10: “Just the Way You Are” moves 7-6.

Also logging two spots near the top is Rihanna: “What’s My Name” featuring Drake falls 2-3 and “Only Girl in the World” drops slightly from 6-7, according to Billboard.Pink’s “Raise You Glass” is No. 4, while Ke$ha’s “We R Who We R” stands at No. 5. The Black Eyed Peas hangs at No. 8 with “The Time (Dirty Bit),” and, rounding out the top 10, Lil Wayne bows at No. 9 with “6 Foot 7 Foot” and Nelly’s “Just a Dream” is No. 10.

Diddy Dirty Money look to have a hit on their hands with “Coming Home” as it moves 24-19. The highest debut belongs to Taio Cruz, whose “Higher” featuring Travie McCoy launches at No. 80.

You change your mind
Like a girl changes clothes
Yeah you, PMS
Like a bitch
I would know

And you over think
Always speak
Crypticly

I should know
That you're no good for me

{CHORUS}
Cause you're hot then you're cold
You're yes then you're no
You're in then you're out
You're up then you're down
You're wrong when it's right
It's black and it's white
We fight, we break up
We kiss, we make up
(you)You don't really want to stay, no
(but you)But you don't really want to go-o
You're hot then you're cold
You're yes then you're no
You're in and you're out
You're up and you're down

We used to be
Just like twins
So in sync
The same energy
Now's a dead battery
Used to laugh bout nothing
Now your plain boring

I should know that
You're not gonna change

{CHORUS}

Someone call the doctor
Got a case of a love bi-polar
Stuck on a roller coaster
Can't get off this ride


You change your mind
Like a girl changes clothes

{CHORUS}