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Fellas, if you want to pucker up to Keri Hilson, you better shave first. The “Pretty Girl Rock” singer was on hand to help Gillette launch its “Kiss & Tell” national experiment to prove that ladies prefer a smooth-shaven kiss versus a stubbled one.

Miss Keri joined L.A. couples at the Santa Monica Pier on Wednesday as they put their lips to the test. The results of the social experiment will be announced on Valentine’s Day.

While she remained out of the spotlight last year, the blonde bombshell has big plans for 2013. She will star alongside Vin Diesel in the upcoming movie The Chronicles of Riddick: Dead Man Stalking, hitting theaters in September. Her third album is also due this year featuring production from Timbaland and Polow Da Don.