Ganbarou yo is an original Japanese VOCALOID song featuring Kagamine Len. It was originally listed under the name "Harambee", but was later changed to "Ganbarou yo". It's the second solo demo showcasing the updated version of Kagamine Len V4X, and utilizes his Cold and Power voicebanks. This song is featured on the Toraboruta-P's albums Torabotic World , Torabotic Symphony and EMI Music Japan's compilation Vocalo Choumix feat. Hatsune Miku .