Here's some proof:
This is what I wrote about Ella a while back when I was doing profiles of fifty jazz albums:
The Songbook series of recordings is essential listening; her live albums are remarkable, especially the classic Ella in Berlin, and the albums in which she is paired with Louis Armstrong are fun. But when I feel like listening to Ella, my go-to album is Clap Hands, Here Comes Charlie. In a small combo setting (piano, guitar, bass, drums), she swings, scats, and settles down for some lovely ballads too. Highlights include, but are definitely not limited to, A Night in Tunisia, Stella By Starlight, Jersey Bounce and The Music Goes Round and Round.Enjoy!