Jakarta. DJ Alan Walker surprised Al-Azhar High School in Medan, North Sumatra ahead of his concert in Jakarta. He visited music teacher Tri Adinata, who went viral for teaching students using his songs.

Upon his arrival on Tuesday, dressed in his signature all-black attire and mask,  Alan was warmly welcomed by cheering students.

Inside the music classroom, Alan was amazed by the students' musical talents. Tri expressed disbelief at meeting his Norwegian idol, describing it as a dream come true.

"Being visited by my idol @alanwalkermusic at school, meeting my students, and singing together is a dream come true," wrote Tri Adinata in his social media post as quoted on Wednesday.

Inside the classroom, Alan was amazed by the musical talents of Tri's students.

Alan also gave Tri and his students a special surprise – invitations to his concert in Jakarta on June 8, at Phantom PIK 2 Ground Park.

Previously, Alan made a viral sensation by sharing his WhatsApp number on social media, receiving over 15,000 messages and even being added to family groups.

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