Bloodied Avengers Endgame cast sings 'happy birthday' for Iron Man in Robert Downey Jr's behind-the-scenes video | Hollywood - Hindustan Times
Avengers: Endgame Cast Sings "We Didn't Start the Fire" | The cast of Avengers: Endgame recaps the entire Marvel franchise by singing their own superhero version of Billy Joel's "We Didn't Start
![Robert Downey Jr. Shares Never-Before-Seen Video of Avengers: Endgame Cast Singing Happy Birthday to Iron Man Robert Downey Jr. Shares Never-Before-Seen Video of Avengers: Endgame Cast Singing Happy Birthday to Iron Man](https://sportshub.cbsistatic.com/i/2021/03/17/cd3d14a0-e6f6-405c-b938-eae4f94532c5/iron-man-2008-avengers-endgame-comicbookcom-1169617.jpg)
Robert Downey Jr. Shares Never-Before-Seen Video of Avengers: Endgame Cast Singing Happy Birthday to Iron Man
Avengers: Endgame Cast Sings "We Didn't Start the Fire" | On The Tonight Show Starring Jimmy Fallon, the cast of Avengers: Endgame recaped the entire MCU by singing their own superhero version
![Josh Brolin shares a star-studded video of the Avengers singing Happy Birthday over a year later | Daily Mail Online Josh Brolin shares a star-studded video of the Avengers singing Happy Birthday over a year later | Daily Mail Online](https://i.dailymail.co.uk/1s/2019/05/03/23/13068268-0-image-m-13_1556922680558.jpg)