Jon Bon Jovi Goes Undercover to Surprise Fans at Karaoke Bar

The rocker pulled the prank to launch a new Omaze charitable campaign that allows fans to enter for the chance to be a bandmate for a day. Proceeds from the campaign will go toward alleviating hunger and homelessness.
3:52 | 10/05/16

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Transcript for Jon Bon Jovi Goes Undercover to Surprise Fans at Karaoke Bar
And I know you're bringing something to the table today. Something that makes me smile. Something that makes you happy. What would that be? I might like a little karaoke on the side and this might be my song actually "Living on the prayer." I have to say. Yes, bon jovi. And speaking of bon jovi, can you imagine you're out there singing "Living on a prayer" and thinking you're good and bon jovi comes up and surprises you for a great cause. Seeing it here first. Take a look at what happened. Let's do it. ? He so hot. No, no, no. ? I'm a cowboy ? Like that. ? On a steel horse I ride. Who is that guy? Wanted. ? Dead or alive ? ? halfway there ? oh living on a prayer ? Aaagh. ? Take my hand we'll make it, I swear ? The beard is real. The beard -- No, it's not. Knew you were too clumsy -- You didn't think it was me? That is so great. I would have screamed too. Me too. I did scream when I saw it. I love that it was incredible and amazing for a cause. You can enter a chance to meet bon jovi yourself and win so many other cool prizes at owe macys.com/jbj and watch the entire video on our website goodmorningamerica.com on Yahoo! $10 well spent. Exactly. Yes. Michael Strahan's go-to karaoke song. ? I believe I can fly ? That's a good one. You like to slow it down. I love bon jovi too. I usually need a partner and go a little "Islands in the stream". ? Islands in the stream ? ? that is what we are ? George, what about you? One that anybody else is singing. Who would be your dream partner? John Mayer. Oh, wow. You didn't even think about that. That was a plea. What about you. Michael Bolton. He can sing some pretty good stuff. ? When a man loves a woman ? There you go. Or maybe just Michael Strahan. No. My -- my dream karaoke duo would be, you know, me and George. I was going to say that because you could kind of help George and come -- I just want -- I want to see him belt it out. Same day I dance with you. One day. So in other words, it's not happening. But, you know, recently I went down to the Jersey shore had a chance to hang out with John, interview John. It's going to air next week on "Gma" -- Jon bon jovi. Just in case. To you it's just Jon. You sing with him. I sang a little bit which was a dream come true. I keep talking over because I don't want you to hear it. Wait. What are you singing? What song? "You can't go home." How does it go? No. You talked about a lot of things also -- We talked about a lot of things about his charity work, about the band, about Richie leaving the band. Something he never talked about and his new album "This house is not for sale" which is coming up and going to be released soon so it was great. Great time to hang out with him at the shore. Got on stage and rocked out if you want to call it that. See it all next week.

This transcript has been automatically generated and may not be 100% accurate.

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