Avril Lavigne is now on TikTok and she made her debut on the platform in the best way possible, with the original «Sk8er Boi,» Tony Hawk!In her first TikTok video, Lavigne is seen sitting on a skate ramp wearing her signature «Sk8er Boi» tie and mouthing the words to the 2002 hit single when the video cuts to Hawk, now wearing the necktie, as he performs a few quick tricks on his board.«He was a… @tonyhawk #GoSkateboarding #sk8rboi,» Lavigne captioned the clip.He was a… @tonyhawk