21. Timbaland f/ Justin Timberlake "Carry Out" (2009)
Producer: Timbaland, J-Roc
Album: Shock Value II
The "food for sex" metaphor is silly—"Have it your way/Foreplay/Before I feed your appetite"—but the performance is an A+ and the song is still a heavy-hitter in the clubs. The reason it's a top hit for Timberlake is based on a few reasons, most notably: the song was released in December 2009, three years after FutureSex/LoveSounds. It was a reminder he still had that emotional falsetto.
The way Timberlake finishes off Timbaland's lines is a playful method for the duet, his vocals on the chorus made the song as popular as it became. Even with lyrics like, "I'll take two number threes/That's a whole lot of you and a side of me," there's something as entertaining about this as "Dick in a Box." —Lauren Nostro