Yes, Adam Levine is a great possibility. He had her as his "guest coach" or whatever they call it on The Voice a few years ago. He or HAIM seem like the best bets unless they go old school like Don Henley.
By the way, not that this has anything to do with Stevie, but here's the writeup on the Steve Miller / Black Keys fiasco a few years ago. What a grump!
https://www.rollingstone.com/music/m...nsults-234363/