
At the end of each week, #Top40Tweets lists a cross-section of artists on the current pop charts and puts their tweets on display (along with their current chart number) for your enjoyment/scrutiny. This week, we look at artists on the Billboard Music Charts.
#18 (Hot 100): Justin Bieber – Beauty And A Beat feat. Nicki Minaj
My birthday is tomorrow
— Justin Bieber (@justinbieber) February 28, 2013
Justin Bieber is nineteen-years-old today! Wherever he is, hopefully there’s a lot of this going on:

FUN FACT: Justin gets to celebrate his nineteenth birthday however he wants, meanwhile, Ja Rule is spending his fourth consecutive birthday behind bars. Ja Rule has a leap year birthday (February 29th), which I guess means that he’s technically only had one birthday while imprisoned. If all goes well for Ja, he’ll be granted release July 28, 2013. Hang in there, buddy!

#10 (Hot 100): Lil Wayne – Love Me feat. Drake & Future
Dam pit bull bro I thought u was kool.
— Lil Wayne WEEZY F (@LilTunechi) February 27, 2013
@liltunechi I am cool papo but imagine me shitting on anything new orleans which I was just there for super bowl the big easy I loved it
— Pitbull (@Pitbull) February 27, 2013
@liltunechi the world shows me love and vice versa but miami is all I got no disrespect just the truth
— Pitbull (@Pitbull) February 27, 2013
After Lil Wayne lashed out at the Miami Heat for supposed mistreatment, Pitbull came to his city’s defense, firing shots at Lil Wayne in this “Harlem Shake” remix:
“Here’s a deposition, watch what you speak
Who’s the definition of Miami? Me
I move cultures, don’t believe me — watch and see
Ask Barack Obama, he’ll bet the White House on me
You got money, yeah — yeah, that’s sweet
But we all know Baby and Slim really eat
You talk Miami, if you talkin’ heat
Moral of the story: don’t shit where you eat”
FUN FACT: Pitbull recently triumphed in a lawsuit over a lyric he included in the 2011 hit “Give Me Everything.” Pitbull dropped Lindsay Lohan’s name in the song (“I got it locked up like Lindsay Lohan”), and Lohan sued, claiming Pitbull had no right to use her name. The judge ruled in favour of Pitbull, stating that “the song is a work of art protected by the first amendment.” A Pitbull song was declaired a work of art? Justice is blind, and also apparently deaf.
(Uncharted): RedFoo – Bring Out The Bottles
I’ll be handing out sex and relationship advice tonight with @drdrew on @loveline at 10pm (PT). Call in at 1-800-LOVE-191!
— RedFoo (@RedFoo) February 28, 2013
Would you accept relationship advice from a 37-year-old man who literally can’t stop rapping about his own penis?
FUN FACT: You can listen to the entire episode of Loveline Live below, and learn RedFoo’s secret to relationship intimacy: every day he’s snugglin’ (probably, anyway).
#45 (R&B/Hip-Hop Songs): Chief Keef – Hate Bein’ Sober feat. 50 Cent & Wiz Khalifa
I can’t I’m working ok”@qualitylana: @50cent fuck me”
— 50cent (@50cent) February 28, 2013
No I’m working,I’m on ESPN ok”@awitsjack: @50cent fuck me in the ass”
— 50cent (@50cent) February 28, 2013
You’ve gotta respect this man’s hustle. He’s working, leave him alone, you insatiable Twitter sexbots!
FUN FACT: Just to prove that 50 Cent is flesh and blood with real human needs, here he is planting an awkward kiss on Erin Andrews at the Daytona 500:

(Uncharted): Azealia Banks – Barely Legal (Strokes Cover)
I’m at the Zoo!! instagr.am/p/WQf4QDH1V7/
— YUNG RAPUNXEL (@AZEALIABANKS) February 28, 2013

So tempted to jump in the sealion pit.
— YUNG RAPUNXEL (@AZEALIABANKS) February 28, 2013
Yo why are baboons butts so raw and chafed? It looks so painful. :(
— YUNG RAPUNXEL (@AZEALIABANKS) February 28, 2013

Oh god, she’s not wrong.
FUN FACT: As Azealia Banks puts the finishing touches on Broke With Expensive Taste (to be released March 26th), she released a cover of a Strokes song, you know, just because: