02:32 AM EDT 08/14/2014
Originally posted 05/09/2014 03:15PM
It might be time for James Franco to take a social-media hiatus. The Palo Alto actor went on the Late Show with David Letterman to explain the motive behind his most recent controversial Instagram move.
Top 10 News Categories
The most buzzed about stars this minute!
Treat Yourself! 4 Preview Issues
More On PEOPLE.com
Got a News Tip?
Send it to our People.com editors!