Jeff "Skunk" Baxter performs Rikki Don't Lose That Number live at the NAMM Show 2016 TEC Awards in Anaheim, CA. Featuring Kipp Lennon on vocals, Nathan East on bass, CJ Vanston on keys and the Larry Batiste 2Cold Chili Bone TEC Band.
I know a guy who sings in various tributes, and it's kind of amazing how he can do accurate sounding impressions of the various singers he covers. He's also an actor, so I think that training definitely comes into play.