More and more celebrities are being spotted in awesome superhero t-shirts: Bill Kelliher from the band Mastodon shows off his Rush t-shirt while performing.
Comedian Hal Sparks is wearing a specialized “Punisher” design to the Avengers premiere.
Corey Taylor from Slipknot went Marvel Superheroes while some other notables wear their favorites.
And Robert Downey Jr. is showing up everywhere in his Iron Man t-shirts and other clothing.
