Drake & Johnny Manziel Reunite For Concert Walkout In Houston

Five years later, Johnny Manziel's still the man ... 'cause the Heisman Trophy winner reunited with his old bestie, Drake, at Champagne Papi's concert in Houston!

The award-winning artist and former superstar QB linked up at Toyota Center in H-Town where Drake did his infamous walk ... where he walks through a crowd of his fans during his show during his "It's All a Blur" tour.

Manziel shared a clip on Instagram, saying he was "honored" to walk with his old friend.

"You and your music have changed my life for the better," the 30-year-old said. "Thank you for letting the kid from Texas share that moment with you #SZN."

Remember, Aubrey and Manziel became friends back in the day when Johnny was the signal-caller for the Texas A&M Aggies football team ... during the time Drake was droppin' hits like "Take Care" and "Started From the Bottom".

In fact, Drizzy made a track called "Draft Day" and mentioned Manziel ahead of the 2014 NFL Draft ... where Johnny was selected with the 22nd overall pick.

Johnny also got an "OVO" tattoo on his wrist.