Los Angeles, Jul 25 (IANS): Teen sensation Justin Bieber's heartwarming speech at his girlfriend Selena Gomez's birthday dinner moved her to tears.

The 18-year-old took Gomez and some close friends for a lavish dinner at Il Cielo restaurant here Sunday, and praised her publicly, reports femalefirst.co.uk.

"Justin made a speech which brought tears to Selena. It was basically about how wonderful and exceptional Selena is and everyone stood up and applauded. It was very sweet. Justin looked like he is just head over heels in love with Selena," said a source.

Bieber masterminded the entire evening and made sure his 20-year-old girlfriend was pampered very well.

"Justin made sure that everyone at Il Cielo treated Selena like a princess. He was really adorable about it. You could tell that her birthday dinner party meant a lot to him."

"There were rose petals on the tables, which was Justin's idea. He is quite the romantic. The party was held in the back room and was very intimate. There were about 30 guests," the source added.