What songs are on the sonic underground CD?

There is no official CD called "Sonic Underground".

Are you thinking of the *Sonic Underground* TV series soundtrack? If so, there wasn't a full CD released for the show.

However, the following songs were featured in the show:

Theme Song:

* "Sonic Underground" (sung by Jaleel White, Cree Summer, and Michael Gregory)

Other Notable Songs:

* "What You Gonna Do"

* "You're My Brother"

* "Sonic Underground Theme (Reprise)"

* "We'll Never Give Up"

* "We Are The Underground"

* "This Is Our Home"

* "The Power Of Love"

* "Reach For The Stars"

Many of these songs are available online through various streaming services and on YouTube.