PIX: JLo, Katy Perry at Tommy Hilfiger's LA store launch

American fashion designer Tommy Hilfiger launched a flagship store in Los Angeles, California, over the weekend, and the event saw quite a few Hollywood stars like Jennifer Lopez.

Click Next to see the star arrivals.

Singer Katy Perry wore a silk polka-dot blouse, mini skirt and blue sunglasses.

Tommy Hilfiger was spotted flanked by actresses Drew Barrymore and Jessica Alba.

Singer Alicia Keys and actress Jenna Elfman of Dharma & Greg arrive.

Actors Adam Scott and Michelle Trachtenberg arrive.

Ballroom dancer Julianne Hough and pop singer Jessica Lowndes attend the launch.

Kaley Cuoco of The Big Bang Theory and Lori Loughlin of 90210 attend the launch.

Neil Patrick Harris of How I Met Your mother arrived with partner David Burtka.

Jessica Capshaw of Grey's Anatomy smiles for the cameras.

The new Tommy Hilfiger store looks quite impressive.

The interiors of the store is just as good.