Sia is so committed to her goofy wig gimmick that she even did it while doing a whole Carpool Karaoke bit on last night’s episode of James Corden Late Late Show. During her Carpool Karaoke, Sia explained why she’s doing that whole wig thing, and she also ventured away from her own songs, also singing Rihanna’s “Diamonds,” which she wrote, and David Guetta’s “Titanium,” which she sang on. There’s also a whole narrative framework about how she gave Corden directions to work even though she couldn’t see anything. Corden, naturally, wore a Sia wig for part of it. And there’s alien conspiracy talk! Good times. Watch the video below.