Elmo's Big Birthday Bash! is a 2012 Sesame Street "Step Into Reading" Step 1 app for the iPad. It was released for iTunes by Random House Digital, Inc. The story was narrated by Bob (Bob McGrath) and includes three app games, which are practicing upper and lowercase letters, learning letter sounds and matching rhyming words. In the story, Elmo invites his Sesame Street friends to his birthday party.