Judging from his outfit he thinks he’s somewhere in 1978.
There are parts of 1978 I don’t remember so well either.... to honest :)
I don’t care if Colton & Skylar are dating or not.

His choice is Genesis' "That's All". He's joined on stage with his brother. Song starts kind of slow, but it grows on you.

Steven: You're just a wildflower aren't you? You just love being who you are. That trascends. You keep that up!
J-Lo: The beginning of it felt like you weren't in your comfort zone. That was pretty good.
Randy: Love the whole brotherly love thing. I was like yo these boys have done this before. Let the song breathe like it should. And yo bro you should be up there with him!
The brother re-joins him during the Seacrest chat. He says they're all real proud of him back home.