It's indeed not an ordinary class for the students of Newton High School of Performing Arts as Justin Timberlake appeared to give them a singing "masterclass." The singer-actor took the visit during his promotional tour in Sydney Australia for his movie "Trolls."

As seen in the video, the students were thrilled upon the announcement of their special mentor for the day. The 35-year old actor then came out from the backside and joined the Australian high-schoolers sitting on the floor.

One by one the students started performing their pieces which include singing and playing of musical instruments. The "Can't Stop The Feeling" hit-maker could not hide his astonishment as he witness the talents of the performing arts students as per ET Online.

After each performance, he would cheer them up and say words like "wow", "nice" "great" and "beautiful." One particular piece by the student named Fergus Lupton grabbed Justin Timberlake's attention and made him clap with his song "Snow." Timberlake congratulated Lupton saying he got a special voice.

Justin T. left a message to the high-schoolers where he told them to stay curious and pursue with asking questions on their field. The Grammy awardee also stated his deep appreciation of the moment, thanked the students and said it was indeed a treat to witness their performances.

A photo op proceeded later on where the students got a closer encounter with the singer. Justin Timberlake plays the role of Branch, a Troll who sets for an adventure with Poppy the happiest Troll (played by Anna Kendrick) in order to save her friends and their invaded land in the Dreamworks animated movie "Trolls." It was shown in US cinemas last October and hit the theaters of Australia on December 8 (Thursday).

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