Sarah Hyland celebrated her 24th birthday with a load of fabulously famous sorts, as well as Kelly Osbourne.

The Modern Family' actress - who turned 24 today - enjoyed a dress-up birthday party with her famous pals, who also included Vanessa Hudgens and Cameron Monaghan, in Los Angeles, and she was treated to a three-tier birthday cake with a huge '24' on top.

Following the celebrations, Sarah took to her Instagram account to thank her female friends for making the 'ladies-only' evening such a special one.

She wrote: "I had the best night last night!!! Thank you to all who came!!! I love you all... It's a ladies party. No boys allowed (sic)" All the boys present must've been momentarily partying in another room, or something.

An hour ago she posted... Rang in my 24th year of life with some pretty amazing people I'm very grateful for. @jaime_king @taylorswift @kyle_newman." An extremely nice feeling to experience  considering most people have the ALMIGHTY FEAR after their 24th birthday party.

Kelly also had a fantastic time at the bash and took to Instagram to post a series of pictures taken inside the party's photobooth, in which the 'Fashion Police' co-host wore a blonde wig. Well, we're almost sure it's a wig; given her previous dos almost anything can happen up there.

She wrote: "Had so much fun last night playing dress up with @taylorswift at @therealsarahhyland 24th birthday party!!! (sic)"

According to E!, a source revealed Sarah was given a tiara to wear to go with her low cut dress. Unsurprisingly, her friends made it a musical affair as they all gathered around a piano to bang out a few songs. Who would win in a pipe off between Taylor, Lorde and Ellie? Has to be Lorde.

Meanwhile, at Miley Cyrus' birthday party...