The side and background characters in MLP:FiM are one of the (many) great things about the show. It's always fun to see these minor characters get some love. IdLike2BeATree wrote a parody of "One Thing" by One Direction, turning it into a Gilda-the-Griffon-centered song called Worthy.
This is an excellent piece, and I think the lyrics IdLike2BeATree wrote fit Gilda really well. Give it a listen in the video! You can also find IdLike2BeATree on Youtube.