Listen to Grumpy Old Troll online. Grumpy Old Troll is an English language song and is sung by Karaoke Diamonds. Grumpy Old Troll, from the album Dora the Explorer : The Best Songs (Karaoke Version In the Style of Dora the Explorer), was released in the year 2010. The duration of the song is 1:00. Download English songs online from JioSaavn.