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 5 artists on the Billboard Music Charts.

#24: Rihanna – Birthday Cake

At least she’s not wearing Crocs, right?

FUN FACT: Rihanna plays Cora Raikes, a weapons specialist aboard the U.S.S. John Paul Jones in the summer blockbuster Battleship, which premieres on May 18th, 2012.

#50 (R&B/Hip-Hop Songs): Big Sean – Dance (A$$)

Hopefully in the 6 hours Big Sean was exposed to the children, he wasn’t able to pass on his terrible grammar, or his love for asses.

FUN FACT: As part of the Get Schooled Foundation, Big Sean did actually act as Principal for Lincoln High School in Detroit. Students with exceptional attendance records were rewarded with impromptu meet-and-greets with Big Sean, and a concert performance by Royce Da 5’9″.

#31 (Ringtones): Lil Wayne – How To Love

Most rappers are too bush to acknowledge Mother Nature, but Wayne takes time out of his busy day of smoking weed and skateboarding to make sure she knows she is appreciated.

FUN FACT: Weezy just settled a lawsuit out of court for $1.5 million, paid to a producer who claimed that royalties had not been paid for a song that appeared on Tha Carter III.

(Uncharted): will.i.am – T.H.E. (The Hardest Ever) feat. Jennifer Lopez & Mick Jagger

What does will.i.am have up his sleeve this time? If it’s an app that allows your iPhone to collect and analyze your own sweat, I’ll be seriously grossed out.

FUN FACT: will.i.am has been getting flack for tweeting during live-tapings of The Voice UK. He’s very serious about his apps.

(Uncharted): Iyaz – Replay

When you eat that much shrimp, you’re gonna pay a premium. That’s worldwide.