Demi Lovato Just Admitted That She Wants to Duet With This Powerhouse Singer

Demi Lovato took a few minutes of her short time in London on Nov. 9 to host a Q&A with her Twitter fans. And knowing that Demi is never one to dance around a question, we knew a few interesting tidbits about the singer would come out of the process. She answered fairly typical questions like, "What's your favorite song to perform?" (answer: "For You," "Stone Cold," and "Confident") and, "What's your favorite ice cream flavor?" (that'd be "chocolate chip cookie dough"). But then one fan asked what we've all been dying to know:

Yes, Albeiro, speak for all of us! So what was Demi's response?

How can we make this happen? Demi and Ariana's voices are a match made in powerhouse vocal heaven, and we need to hear them together! And you know what else we need? Demi's best style tips, because her outfit at the BBC Radio 1 studios earlier in the day was superchic.