Tennis great John McEnroe proved he's still a stud off the court -- belting out a SWEET, harmonized karaoke chorus of Neil Young's "Rockin' in the Free World" at Cafe Habana in Malibu Wednesday night.
Game. Set. Match.
The ROCKIN' Karaoke Session
8/5/2011 12:15 AM PDT BY TMZ STAFF
Get TMZ Breaking News alerts to your inbox