Justin Theroux shows off his muscular arms in a white Simpsons t-shirt while walking his pup Kuma

Justin Bieber and wife Hailey greet Kanye West with hugs as they stop by the rapper's Wyoming ranch

Katy Perry shows off her baby bump in a bright orange wig and matching polkadot dress

Arnold Schwarzenegger shows off toned arms in patriotic t-shirt as he wears his 'we'll be back' mask