Really good at football. Really bad at singing!!!

That’s how the Philadelphia Eagles players felt about rookie QB Jalen Hurts — booing the guy off the stage during a performance at the team facility  … and the footage is hilarious!!!

The former Oklahoma/Alabama star tried to best to perform Maze’s 1981 hit, “Before I Let Go” on Tuesday — but man, it did not work out!

Tone-deaf? Yes. Pitchy? Yes. Voice cracking during the song? Mmmhmmm.

And, since it’s Philly, the crowd LET HIM HAVE IT — booing the crap out of the guy … with some players yelling, “Get the f**k outta here!”

Obviously, the whole thing is in good fun … NFL rookies have been embarrassing themselves in team “talent” shows for decades. Never gets old.

Hurts had previously performed Al Green’s “Love & Happiness” for the team last week — no boo’s there, though.

The 22-year-old just inked a 4-year deal with the Eagles for $6 mill — so at least he’s got a day job!