A girl from Larchmont headed back home after going onto “The Ellen DeGeneres Show” and meeting Diddy Thursday.

News 12 shared the story of a viral video that featured some very brave kids fighting cancer. It was created by ‘Fighting All Monsters.’

MORE: Diddy and kids fighting cancer appear on 'The Ellen DeGeneres Show' 

In the video, the children dance to Diddy's “Bad Boy for Life” song and tell cancer "they ain't going nowhere." 

One of the children in the video is 4-year old Cassidy Kline, of Larchmont.

News 12 interviewed Cassidy about her journey and her love for Diddy’s song. Diddy then shared News 12’s coverage about her on his Instagram.

A few days later, Cassidy received a call from Ellen DeGeneres’ team to appear on her show. Unfortunately, Cassidy wasn't feeling well that day and had to watch from backstage.

However, her dreams to meet her favorite rapper still came true as Diddy made a surprise appearance for the show.

Cassidy is now at home celebrating remission and coming back to school after beating an aggressive form of stage 4 cancer.