Watch Singer do 28 Celebrity Impressions in One Song

— -- Get ready to be very impressed.

Rob Cantor posted a video of his song "Perfect" to promote his new album "NOT A TRAMPOLINE" and in it, he does almost 30 celebrity impressions.

Cantor says it's 29 impressions, but by count it's 28 and he does one of himself that is "spot on."

It's amazing, he starts off with voices like Kermit the Frog and Louis Armstrong, then transitions effortlessly into Adam Sandler and Gwen Stefani. It is absolutely incredible how easily he switches from a guy's voice to a woman's and nails it perfectly.

Ian McKellan, Shakira, Britney Spears and Christina Aguilera come next.

The video has well over 6 million hits, but give it a look, it's definitely worth watching.