Justin Spoofs John Mayer on Late Night Premiere

03/03/2009 at 03:00 PM EST

If imitation isn't the most sincere form of flattery, John Mayer better watch his back.

The singer was the subject of a killer (albeit slightly mocking) impersonation by his pal Justin Timberlake on Monday's premiere of Late Night with Jimmy Fallon.

"John Mayer is like if Macy Gray and Smokey Robinson," Timberlake started, before switching gears, "Actually, Macy Gray and Smokey the Bear, had a love child."

Riffing on Mayer's hit "Daughters," Timberlake – who most recently scored big laughs with his SNL spoof of Beyoncé's "Single Ladies" video – then explained the technique behind impersonating Mayer's "solo face" saying, "Literally his tongue takes over."
– Michelle Tauber