AP: What was it like to hear Swift's vocals on the song when it was done?

I played her the song on her show... and instantly she loved it. She was like, "B.O.B, I have tears in my eyes. I love this song, I'm down. I want to be a part of it." And she sounded amazing on the record. She actually rewrote some of my verses as well.

AP: Dr. Luke produced four songs on “Strange Clouds.” What was it like working with him since he’s best known for his hits with Katy Perryand Ke$ha?

Working with Dr. Luke is good, but sometimes you may run into disagreements, certain things that may rub an artist a certain way. For example, when I recorded “Both of Us” (featuring Taylor Swift), I recorded my vocals on the hook, but when it was time to turn the masters in, he snatched my vocals right when it was time to turn in the masters. And so, as an artist it kind of makes you feel like, “I guess it’s his song.” I don’t know. He’s a talented dude, but sometimes when you work with a producer, sometimes their ego may get in the way into really making it a completely mutual project.