The "Don't Ya Think I'm Sexy" singer stopped by the "Late Late Show with James Corden" on Tuesday for some Carpool Karaoke, where the twosome sang a few of Stewart's biggest hits, chatted about his partying past and his infamous 'do.
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Later in the car ride, Corden asks Rod about his favorite rock 'n roll moments -- and the "Maggie May" singer couldn't pinpoint just one.
"There's been so many," Stewart explained. "Just drinking and a shagging and a drinking and a shagging. Smashing up hotel rooms."
The 70-year-old also reveals that during his band's heyday the group was banned from the Holiday Inn, so they used to check in under the name Fleetwood Mac and throw some massive parties.
James also couldn't help with ask the rocker about his legendary 'do. "Let's talk about the hair, 'cus it's a work of art. How long does it take to get that?" Corden asked. "It's ten minutes," Rod replied. "Can I touch it?" Corden retorted.