Rap newcomer Mac Miller has helped to make a cancer-stricken fan's dream come true by inviting him into the studio to record a new song.
The hip-hop star met 18-year-old Bobby Stewart last year (11) during a concert in his hometown of Pittsburgh, Pennsylvania, where he presented officials at the Make-A-Wish Foundation - which grants wishes to youngsters with life-threatening sicknesses - with a cheque for $50,000 (£31,250).
Miller was so touched by Stewart's battle against T-cell lymphoma, he decided to call on the teen to join him at ID Labs for a special collaboration.
And Stewart is overjoyed to have spent time making music with Miller: "To be with Mac is a blessing. He's lyrically amazing. Hip-hop is my passion."
The rapper adds, "Feeling like your music really does something for the world makes it all worth it, no matter what. From now on, no matter what happens for the rest of my life, no one can take that away from me."