The Carpool Karaoke series on Apple Music (check out Will Smith in the premiere) released this "extended preview" featuring Alicia Keys and John Legend -- but there's a twist. They're not actually singing songs, not their own and not anyone else's either. The two angel-voiced performers still have quite a good time, though, creating instant commercial jingles for various catchphrases and products James Corden throws at them.

Did you ever think you'd hear John Legend sing about a four-hour erection? Well, now you can. ("You're too haaaaaarrrrrd...") And get ready to learn more than you ever thought you'd know about Alicia Keys' deodorant habits.

Meanwhile, over on The Tonight ShowA$AP Mob performed "Feels So Good":

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