How could you possibly choose between the incredible voices of soul man from the Valleys Ash Morgan and the rocker with a Motown heart Adam Barron?
Pitching their artists against each other, the four coaches have to half their teams in a series of musical duels.
Ash and Adam's mentor Jessie tells the pair that she has no vocal notes for them in rehearsals and things only get better as they step into the ring and move the crowd and the Coaches with their rendition of James Morrison’s “I Won’t Let You Go”.
Take a look and see what an incredibly tough decision Jessie has to make as they go head to head to secure that valuable place in the Knockout Rounds later this month.
Jessie J tells the pair: “it was like two credible artists that have had albums out a Grammy performance of two artists that have been doing it for years coming together and singing.”
Watch the full battles this Saturday, 11th May at 8.35pm on BBC One and the Battles continue on Sunday, 12th at 7pm