The boy's definitely a romantic.
INFINITE's Sunggyu opens up about his first love in today's episode of The Beatles Code 2.
The 23-year-old reveals on the music talk show how he chose to woo the girl, who was at the same school as him.
He says of his then-girlfriend: "I sang the song 'A Dream of a Doll' for my girlfriend.
"She and I were in the same school band. She played the piano and I was the vocalist.
"I wasn't in love at first sight, but [as time went by] I realised that I was becoming more interested with her."
Alas, it wasn't meant to be and the couple didn't last for long.
The singer also gets people guessing by admitting there is someone he loves at the moment, although he refused to divulge any more details.
Bandmate Hoya, 21, also opens up in the Mnet show about his bed scenes with singer Seo In Guk in Reply 1997 and whether he would have been able to film a gay kiss scene.