Demi Lovato and Kate Bosworth at Topshop Opening in LA

Kate Bosworth and Demi Lovato helped launch the new Topshop/Topman store at The Grove in LA yesterday. Kate wore head-to-toe Topshop as she assisted in cutting the ribbon for the store's opening, while Demi wore a studded leather jacket — to match her studded foot cast — as she took the stage to perform for fans. This is the second Topshop event that the two celebrities have attended this week. On Wednesday, Demi and Kate partied for Topshop with Julianne Hough, Ryan Seacrest, and Kim Kardashian.

The Topshop events come as Demi's future with The X Factor is in question. Demi recently admitted that she hasn't been asked back officially, but she would sign on for another season. She also said that she would love to see Lady Gaga replace Britney Spears, who announced that she was leaving the show back in January.