Bill Murray Jammin' with Willie

3/19/2016 7:40 AM PDT

Bill Murray -- Jammin' With Willie (VIDEO)

EXCLUSIVE

Bill Murray fan-boyed out during SXSW weekend, blown away by what everyone says was an awesome Willie Nelson concert.

Willie was playing at Luck Ranch Friday, which he owns in the outskirts of Austin. We could only snag a little video, but you get the idea ... even Bill's not too big to get starstruck.