After leaving One Direction, Zayn Malik had proven that he can manage on his own without his famous bandmates, Liam Payne, Harry Styles, Louis Tomlinson and Niall Horan. Zayn Malik has become one of the most in-demands solo artists right now and Charlie Puth made sure everyone knows that he is a a fan of the former 1D star.

Just Jared reports that Charlie Puth shared his admiration of Malik’s music in front of the large audience during his 2016 Rock in Rio Lisbon performance on the Mundo stage on Sunday, May 29, in Portugal.

“I am a huge fan of Zayn. I would love to (collaborate with him),” he said. “I think he’s a fantastic songwriter and he’s just a great guy.”

Charlie Puth then added, “I love guys who are making real music. Anybody who’s making real music and putting their heart into it. I can see where he’s coming from for a lot of these songs. I’m a huge fan. I just love the sonics of everything he’s doing too.”

While Charlie Puth praised the 23-year-old English singer and songwriter for his music, Malik did the exact opposite to his former bandmates by dissing their latest album, “Made In The A.M,” earlier this year.

Zayn Malik, who starred in the featured cover story for Billboard‘s January 2016 issue, didn’t hold back in his interview.  The interview took place just about two weeks after One Direction‘s Made In The A.M. was released, and Zayn Malik shared a piece of his mind about the group’s new music.

“I’ll be honest, I thought the first single was quite cool,” he reveals, referring to “Drag Me Down.” He then goes on to say, “I heard the second single [“Perfect”] and — yeah, I didn’t buy the album.”

“Perfect” is one of the most popular tracks in the British-Irish boy band’s latest album. It was believed to be Styles’ ode to his romance with country superstar, Taylor Swift.

Malik’s criticism is not something new, four months after he left One Direction, the singer made an announcement revealing he’s ready to make “real music” with his new label, RCA.

Zayn Malik previously told The Fader that people don’t know what he will give them musically yet. He then said that if fans will finally hear his music, “they’ll understand why I did what I did, and why I left the band, and why I had to write all this s**t down.”