You may not know it now, but you're gonna miss this.

Songs new to Billboard's top 50 singles chart, and the top debut.

#19 (from #92): Lil Mama feat. Chris Brown & T-Pain, "Shawty Get Loose (Remix)"
Brown and Pain didn't need another hit this month (or in T-Pain's case, week) and I miss the original's hair advice ("You wash, set, blow and you wash, set, blow"), but fine, whatever, could be worse, just put her damn album out!

#41 (from #60): Rick Ross feat. T-Pain, "The Boss"
A lot of rappers claim no one is as successful as they are, but most would realize that, if the hook is "I'm the biggest boss that you've seen thus far," your video shouldn't climax with the arrival of Fat Joe.

#47 (from #51): 2 Pistols feat. T-Pain & Tay Dizm, "She Got It"
Seeing as how songs like this will wind up on The Best Of Featuring T-Pain anyway, rappers in his presence should choose the most inoffensive cliches, slur rather than yell, and keep it brief. Like this guy.

#48 (from #54): Trace Adkins, "You're Gonna Miss This"
A young woman is told that every period of her life will seem worse than the one before it. Needs T-Pain.

#63 (debut): Danity Kane, "Damaged"
Shut up, Diddy. You just ruined a fine song about needing vaginoplasty.