Caitlyn Jenner has hairpiece malfunction as she shows off her cleavage

Caitlyn Jenner showed she's certainly one of the Kardashian girls on Wednesday.

The 65-year-old reality TV star displayed her cleavage in a plunging black bandage dress as she arrived at her stepdaughter Kim Kardashian's 35th birthday bash at Cinepolis in Thousand Oaks, California on Wednesday

The I Am Cait star also appeared to have a bit of a hairpiece malfunction when she put her head down.

She seemed to be sporting a half head wig, which didn't quite blend in as well as one would like.

The E! star - who has previously been pictured in her dress of choice - was seen teetering along in black patent leather open-toe strappy heels.

Caitlyn, formerly Bruce, showed her love of designer duds with a petite Moschino handbag, as she walked through the parking lot.

Tweeting her well wishes for the birthday girl, she wrote: 'Happy birthday beautiful @KimKardashian!'

Along with the Twitter post was an adorable flashback image of Kim from her ice skating days.