Hollywood star Robert Downey Jr has officially joined the online photo-sharing application Instagram.
The 50-year-old Iron Man actor made his Instagram debut with a photo of him, Jimmy Kimmel and The Avengers co-stars all seated in a row backstage at "Jimmy Kimmel Live!", reported Aceshowbiz.
Downey is seen smiling widely alongside Kimmel, Chris Evans, Chris Hemsworth, Jeremy Renner, Scarlett Johansson and Mark Ruffalo, in the photo.
He captioned it, "Come get me, Instagram..." Downey has got more than 50,000 followers in less than five hours.
"Avengers: Age of Ultron" is set to hit theatres in in India on April 24 and in US on May 1.