Lana, Tyler, Doja headline Coachella where Swift rumored to appear

Palm Springs, United States: Hordes of music fans were arriving in California s Coachella Valley for the premier arts festival that begins Friday and...

Palm Springs, United States: Hordes of music fans were arriving in California's Coachella Valley for the premier arts festival that begins Friday and features headliners Lana Del Rey, Doja Cat and Tyler, the Creator.

No Doubt -- the group fronted by Gwen Stefani, which reached peak fame in the 1990s -- will also reunite onstage for the first time since 2015.

And rumors are flying that none other than Taylor Swift, the megastar currently on break from her blockbuster, billion-dollar Eras tour, could make a surprise appearance on the festival grounds dramatically flanked by the San Jacinto Mountains.

Swift is not on the lineup but speculation is abuzz that she could appear on stage with friend Lana Del Rey or with rock band Bleachers -- which is fronted by Jack Antonoff, her longtime producer.

It would also be the perfect moment to promo her forthcoming album, "The Tortured Poets Department," which drops April 19.