Those who were lucky enough to know the wonderful Naya Rivera are still grieving, as her passing was not only sudden but tragic and heartbreaking.

Among those still mourning is Rivera's Glee costar, Amber Riley, who late on Thursday night performed her own single "A Moment", on Jimmy Kimmel Live! and dedicated the emotional song to her late friend.

Amber Riley performs an emotional song

Glee star Amber Riley was given the opportunity to perform an emotional song on Jimmy Kimmel Live! on Thursday night, and dedicated her powerful ballad to her late friend Naya Rivera. 

Riley, who has a self-titled EP coming out on October 2, performed one of the singles off her new album, titled "A Moment", and not only dedicated the song to Rivera but was given support and love from her other Glee castmates, including Chord Overstreet.

"I can’t wait to see this amber!! You’re gonna crush it!" they wrote on Twitter.

During the performance, photos of Rivera, including some with her son Josey, played overhead while Riley performed her powerful song.

Watch the performance below.

Rivera was found deceased on July 13, just days following the missing report when she and her son went boating on Lake Piru in California.