"American Idol" waves aloha to Aulani, A Disney Resort & Spa in Ko Olina, Hawaii, wrapping up two nights of incredible Top 24 performances. Pop star Bebe Rexha mentors Idol hopefuls as they belt out unforgettable tunes in hopes of making it through to the next round. Audiences at home will cast their votes, keeping the dream alive for the remaining Top 20.