The episode kicks off with Rachel singing Alanis Morissette's "Uninvited" as she leaves the Hollywood set of her failed show. It's an interesting choice for the first song of the final season, but as usual, she nails it.
Blaine and The Warblers take on "Sing" by Ed Sheeran (which you can watch here), and it's perfection.
Perhaps the most memorable number of the evening is "Let It Go," as sung by Rachel. You'll definitely want to check it out, because it rivals Idina Menzel's version.
Because you knew someone would do it, the original Cheerios (Santana, Quinn, Brittany) do a version of Ariana Grande's "Problem." It's a ton of fun, especially with Artie jamming out as well.
The two-parter ends with a rendition of 2009's "Home" by Edward Sharpe and the Magnetic Zeros. By Glee standards, this song is a little old, but it pulls together the new and old characters in a really wonderful way.