These are songs from The Idolmaster games.
“GO MY WAY!! first appeared in THE iDOLM@STER (Xbox 360) as one of six songs added to those from...GO MY WAY!!
“Marionette no Kokoro (Heart Of The Marionette) is a insert song from THE iDOLM@STER (anime)'s...Marionette no Kokoro
“Danketsu (Unity) is a song from THE iDOLM@STER Live For You!'s Limited Edition DVD, and later...Danketsu