Peter Facinelli threw Jaimie Alexander a surprised party on Monday night (10.03.14).

The 40-year-old actor wanted to do something special for the brunette beauty for her 30th birthday earlier this week, so decided to host a secret bash at El Floridita in Hollywood with close friends.

A source told Us Magazine: ''Jaimie arrived with Peter and was so happy, she was definitely surprised.''

The 'Twilight' hunk arranged the party with the help of Jaimie's pals, who thought the venue was the ''perfect place'' to celebrate her birthday as she loves to have a boogie.

A source explained: ''Jaimie loves to dance so it was the perfect place. All her friends were there. They surprised her with a birthday cake and Peter held her hand.''

Jaimie took to her Twitter account on March 12 - her actual birthday - to thank her beau for making her feel ''special'' .

She wrote: ''Thank you @Peterfacinelli for making my birthday (and everyday) so special (sic)''.

The pair began dating in November 2012 and they have been inseparable ever since.

Peter was previously married to Jennie Garth, whom he has Luca, 16, Lola, 11, and Fiona, seven, with - for 11 years, but they split up back in March 2012.