Early in 2014, Miley Cyrus tweeted a birthday shout-out to Flaming Lips frontman Wayne Coyne, a favorite of hers since the Hannah Montana days. He sent her his number in response, kicking off one of the most surprising musical friendships in recent history. Since then, Cyrus, 22, has had The Lips join her onstage on her Bangerz Tour, appeared on two Beatles covers by the band and even got matching tattoos with Coyne and his girlfriend. "We've just been getting in each other's worlds," Coyne, 54, tells Billboard. "We text every day -- sometimes three times, sometimes a thousand."
Now, Coyne reveals, Cyrus and The Lips are prepping a disc of seven songs that they wrote and recorded together during the last year. No release date has been set, but the tracks are nearly done; Coyne and Lips guitarist Steven Drozd are mixing them in their Oklahoma City studio. "She does the pop thing so great, so it still feels pop, but a slightly wiser, sadder, more true version," Coyne says of the project. "Some of it reminds me of Pink Floyd and Portishead." (Cyrus wasn't available for comment.)