Nick Cannon: I'm doing everything for Mariah

Mariah Carey's husband has been her "right hand" since her accident.

The singer dislocated her shoulder and cracked ribs while shooting her latest music promo for single #Beautiful in New York City earlier this month. Mariah is in a lot of pain, so her presenter spouse Nick Cannon has been stepping in to help as much as possible – even using her phone for her.

"I just try to be the best supportive husband I can be," he told New York Post. "I help dial numbers on her iPhone and finish text messages. It's everything she would ever do with her right hand."

Mariah was dressed in a gown and high heels and standing on a platform when she slipped and fell during the video shoot.

After being released from hospital, the 43-year-old revealed she had "bruises everywhere", but was determined to soldier on through the pain.

Mariah vowed the "show must go on" and even performed a few days later despite her injuries at a previously scheduled benefit show at Central Park's Great Lawn in Manhattan.

Nick is now insisting that his superstar wife takes it easy while she recovers from her injuries.

"She's kinda been propped up," he added. "The doctor said as much rest and relaxation as she can possibly get."

Mariah and Nick raise two-year-old twins Monroe and Moroccan together. DJ-and-TV host Nick has done his best to explain to them has been happening since the accident.

"They understand that Mommy has a boo boo," the 32-year-old added.

Mariah is currently promoting her album The Art of Letting Go, which is scheduled for release this year.