New Hollywood bromance alert ... Glen Powell and Johnny Manziel are apparently buddies, because they partied their faces off together in the desert.
TMZ obtained video of Glen and Johnny hanging out last night at Casa Amigos Tacos and Tequila in Scottsdale, where Johnny Football had a VIP section.
Folks who were there say Johnny was already in the club when Glen showed up and joined the group.
We're told this wasn't a coincidence ... Johnny and Glen clearly planned to hang out, and their group of about a dozen were mostly hot chicks.
As you can see, Glen is chatting up a woman in one of the videos ... and we're told they stayed close throughout the night.
Johnny meanwhile, was talking to several different ladies ... and we're told there was no drama and everyone seemed to be in good spirits, with JM and GP partying for at least a few hours.
Glen was in town to play golf in Wednesday's Pro-Am at the WM Phoenix Open ... Johnny wasn't golfing, but he's never turned down a good time.
It's an interesting pairing ... Johnny won the Heisman Trophy at Texas A&M and Glen studied at the University of Texas at Austin before heading to Hollywood. The schools are big rivals, but it's more of a big brother-little brother type deal.
No word who picked up the tab.