Bieber was rejected by the security team Rihanna

Justin Bieber was stopped by security when he tried to speak withRihanna at the Billboard Music Awards on Sunday.

The singer, 17, who went to the party accompanied by his girlfriend, Selena Gomez, was embarrassed after it prevented him from talking to the star after approaching five times during theprestigious event, held at the MGM Grand Garden Arena in LasVegas.

According to some sources, "Justin believes that Rihanna is the most beautiful woman and talented in the world. The singer, who nolonger a teenager, she admires and can not avoid acting as a lapdog in love when she is near. "

"The couple were chatting while Justin's girlfriend, Selena, lookingsomewhat annoyed. Shortly after the singer left with a couple offriends. The couple took up the conversation later, but when Justinwanted to talk to her at the height of the ceremony, the security team of the singer cut him off saying "leave it ", they said.

Bieber, not to reap success, he was "embarrassed" by therejection, because after speaking with the star at the BRIT awardslast thought were friends.

The same sources added the Daily Mirror: "Justin wasembarrassed, I thought they were colleagues. "

However, it seems that the famous singer has recovered from hisdisappointment as he has set sail for Hawaii where he spent a fewdays vacation Selena Gomez.

The pair were photographed yesterday arriving at hand Maui fromLos Angeles. Upon arrival, went straight to the beach.