The 'Bleeding Love' hitmaker – who recently split from her boyfriend of 10 years Lou Al-Chamaa – met The Wanted singer Max George while out partying with friends at exclusive London nightclub Whisky Mist on Sunday night (01.08.10).
Max, 21, and his bandmates were out celebrating reaching number one in the UK singles chart with their debut track 'All Time Low'.
A source told Britain's Metro newspaper: "Leona was really letting her hair down. She got chatting to Max at the bar."
Leona, 25, and the band then partied together until 3am, and at the end of the night she and Max were seen together exchanging numbers.
An onlooker told the Daily Express newspaper: "They all partied away until 3am and then he asked for her number.
"Leona's certainly not going to be short of options when she's ready to date again."
Since separating from Lou, Leona has been seen out partying on several occasions and was spotted last week enjoying a day at the zoo with German dancer Dennis Jauch, 22.