Meet Bianca Lawson!
Queen Bey and Bianca are now stepsisters after Beyonce's mum Tina Knowles tied the knot with Bianca's dad Richard Lawson over the weekend.
Bianca is an actress with a lot of big shows on her resume...
The 36-year-old found fame as Megan on Saved By The Bell: The New Class, before going on to play Kenda The Vampire Slayer in Buffy. Remember her? She turned up when Buffy was killed by The Master. (Although Buffy then came back to life so there were two slayers...)
Bianca's also appeared in Pretty Little Liars as Maya St. Germain and The Vampire Diaries as Emily Bennett. Other roles include Nikki in Dawson's Creek and Rhonda in Sister Sister.
She also starred Save The Last Dance.
Beyonce's mother Tina married Bianca's actor father Richard in a ceremony held on a yacht moored in Newport Beach, California. Beyonce was there with husband Jay Z and daughter Blue Ivy, as well as sister Solange.
Tina split from Bey's dad in 2009.