Mac Miller's Close Friend Says Ariana Was Mac's Greatest Supporter For Sobriety

Ariana Grande was bullied so much on her social media pages after Mac Miller's death, she had to disable the comment section, but close friends to Mac say Ariana Grande played a pivotal role in supporting his sobriety, and wanted him to be healthy more than anything else in the world.

Shane Powers -- who built a close relationship with Mac in L.A. -- went on his podcast, "The Shane Show," Monday to remember his friend. Powers praised Mac's talent, personality and also hit on his struggles with addiction.

Shane said Grande was "incredible" in supporting Mac when he was sobering up -- constantly calling and asking what she could do next to help Mac continue to take steps in the right direction.

Powers says Ariana was ready to "go to the wall" to help Mac and knows the rapper's untimely death was devastating for Ariana.

Ariana posted a photo of the rapper Saturday without a caption.