Making her big U.S. debut, British Pop sensation Jessie J hit the stage over the weekend to perform on “Saturday Night Live.” With the help of special guest B.o.B, the U singer sang her latest single “Price Tag” as well as “Mamma Knows Best”, another track from her debut album Who You Are (which hits stores on April 12th here in the US).

Watch Jessie’s performances below:

“PRICE TAG” (F/ B.O.B)

“MAMMA KNOWS BEST”