Elsewhere, Paula Abdul attended a concert featuring Michael Bolton at The Venetian Resort and Casino, Cher Lloyd was at Paramount Studios' Annual Friends 'N' Family Party, and LeAnn Rimes was at The Music Preservation Project Play It Forward Celebration in association with The Grammy Foundation.
Amanda Seyfried attended the Berlin International Film Festival to promote her movie Lovelace. The actress is expected to attend the BAFTA awards in London on Sunday evening.
In the capital, Jennifer Lawrence was seen leaving her hotel, while Emilia Fox attended a BAFTA dinner held at the St Pancras Renaissance London Hotel.
Meanwhile, Carly Rae Jepsen signed copies of her Seventeen magazine cover in Los Angeles, Jennifer Metcalfe opened her new beauty boutique Shearbeauty in Hampshire and 90210 actress Shenae Grimes enjoyed New York Fashion Week.
See all of today's pictures in our gallery below.