Rihanna & Rita Ora: Pre-Grammy's 1 Oak Night Out with Drake

Rihanna dons an over-sized letterman jacket as she heads inside 1 Oak for a night out on Saturday evening (January 25) in West Hollywood, Calif.

The 25-year-old entertainer was joined out by Rita Ora and her boyfriend Calvin Harris, as well as rapper Drake, who had just come from Shamrock Social Club where he got some fresh ink.

PHOTOS: Check out the latest pics of Rihanna

Christina Milian, Nelly, and T.I. were also spotted out.

Earlier in the night, RiRi stepped out in a glamorous golden gown as she attended the 2014 Clive Davis Pre-Grammy Gala and Salute to Industry Icons held at the Beverly Hilton Hotel in Beverly Hills, Calif.

FYI: Rihanna is wearing a Moschino jacket.