U2 drummer Larry Mullen Jr. has sung his family's praises through the years. "I'm absolutely rubbish at being a rock star," Mullen Jr. said in 2013, per the Irish Daily Mail. "I'm one of the worst ...

Larry Mullen Jr., Adam Clayton, Bono and The Edge of U2 pose at the 2014 Golden Globe Awards in Beverly Hills, California. Steve Granitz/WireImage.

Drummer Larry Mullen Jr., a founding member of Irish rock band U2, has revealed that he has a learning difficulty that makes counting musical bars feel like climbing Mount Everest.

LARRY MULLEN JR.: I was introduced to the film through Chris Farrell. He and I had done some work together before, and he had been working with Anna on this before he and I were involved.

U2 drummer Larry Mullen Jr. said that he was recently diagnosed with dyscalculia, a learning disability similar to dyslexia that effects a person’s ability to do arithmetic or comprehend numbers.

Larry Mullen Jr. Simon Russell/Getty Images for Left Behind Film Dyscalculia is a learning disability that affects an individual’s capacity to comprehend arithmetic, tell the time or read music ...

Kelly Clarkson and U2 drummer Larry Mullen Jr. discussed raising dyslexic children on 'The Kelly Clarkson Show'. Mullen's experience inspired him to become a producer on 'Left Behind', a ...

U2 drummer Larry Mullen Jr. revealed that he has been diagnosed with dyscalculia, a learning disability that affects his ability to count and perform: 'Counting bars is like climbing Everest.' ...

U2 drummer Larry Mullen Jr. has sung his family’s praises through the years. “I’m absolutely rubbish at being a rock star,” Mullen Jr. said in 2013, per the Irish Daily Mail.

Larry Mullen Jr. has been diagnosed with dyscalculia, a form of dyslexia that impacts his work. The U2 drummer recently explained that “counting bars is like climbing Everest” as he opened up ...