Tony Harnell (TNT, STARBREAKER, WESTWORLD) and Michael Sweet (STRYPER, BOSTON) joined forces for a special performance at the Monsters Of Rock Cruise, which embarked on its second voyage from March 16 to March 20.

Departing from Fort Lauderdale, Florida, this cruise visited the private island of CocoCay, plus Nassau, Bahamas with a rockin' bonus day at sea, sailing the emerald waters in this unprecedented floating heavy metal festival.

Fan-filmed video footage of Harnell and Sweet's performance can be seen below.

As previously reported, Harnell will guest on the new solo album from Michael Sweet, due later this year on Big3 Records. Harnell will be a special guest vocalist on the song "Taking On The World Tonight".

Commented Sweet: "I think Tony is truly one of the most underrated singers of all time. He's always been one of my favorites and is an incredibly nice, humble guy to boot. I've always wanted to work with Tony and I knew this would be the perfect song and opportunity to do so. 'Taking On The World Tonight' is very heavy with a combination of old-school riffs and solos yet it's got a very modern, relevant sound as well. It's the best of both worlds! You won't be disappointed."