Steven Tyler Swarmed by Fans as Aerosmith Announces Vegas Residency

If you're wondering if people will flock to see Aerosmith in Vegas, look no further than exhibit A on the "Today" show ... where fans literally couldn't keep their hands off the band.

Steven Tyler, Joe Perry and co. were making their way onto the NBC morning show set Wednesday to talk about the residency with a sea of people around them begging for high fives and cheering them on. One daring spectator actually crossed the barricade to bum-rush Steven for a selfie.

Gotta say, he handled it like a pro ... sloughing him off with ease and keeping it moving without incident. If this dude thought he could get away with that ... Steven pretty much told him to dream on. He basically said as much on Twitter, anyway.