Oh Hyuk and IU have been working together for a collaboration track ''Can't Love You Anymore'', which is set to release on April 7.�The two singers, who are born in the same year, have been showing off their close friendship in a cute MV teaser, as well as on social media.�

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On April 5, Oh Hyuk shared a screenshot from his video chat with IU on Instagram. Among the many netizens who reacted to the post was IU's ex-boyfriend.�

Jang Kiha, who's also close with Oh Hyuk, has hit 'like' on Oh Hyuk's friendly post with his ex.�

Many believe that Jang Kiha and IU are still maintaining a good hoobae-sunbae relationship after all.�