British singer Jessie J claimed top spot in the UK singles chart on Sunday with “Domino”, knocking American rapper Flo Rida's “Good Feeling” into second place, the Official Charts Company said. “Domino”, up from number eight last week, is the 23-year-old singer's second number one single after “Price Tag”. Her success came days after she was nominated in three categories for this year's BRIT awards, Britain's top pop honours. Brighton rap duo Rizzle Kicks moved up two spots to number three with “Mama do the Hump”, the third UK top 10 single from their debut album “Stereo Typical”. __