Katy Perry hosts bridal shower

London: Katy Perry treated herself to a `Alice In Wonderland` themed bridal shower with her closest friends and family in tow.

The `Hot N` Cold` hitmaker, who is engaged to British comedian Russell Brand, threw a garden party in Los Angeles on Sunday to celebrate her impending nuptials, reported Contactmusic.

"The party had an `Alice in Wonderland` theme and only 11 of her closest friends were invited," said a source.

Guests included her DJ friend Mia Moretti, Markus Molinari and her stylists Logan Horne, Rick Henry and Aaron Light.

Among the 25-year-old pop star`s family members was her grandmother who brought along with her a picture of a young Perry posing in a pink outfit.

The singer later posted the photo on her Twitter page, writing, "grandma brought this one outta the closet today!(sic)"

In a bid to keep the event secret, everyone invited was asked to leave their phones at the door apart from Perry.