Besties Yoo in Na and IU have piqued the interest of their fans yet again. This time it is about the latter's relationship with Kiha and the Faces member, Chang Kiha. A recent post on an online community speculated that Yoo In Na knew all about her best friend's relationship since the beginning and dropped several teasers to let fans know that that IU and Chang are indeed in a relationship.

According to Allkpop, an online community post entitled, "Yoo In Na knew the truth about IU and Chang Kiha's relationship" is flooded with a swarm of rumours and speculations about her knowledge of the alleged relationship. The post includes a radio broadcast of 'Yoo In Na's Volume Up' on 27 January, 2014, in which IU made a guest appearance.

The website further stated, "At around the 28:40 mark (see video below), when a listener requested Kiha & The Faces song 'Living the Carefree Life', Yoo In Na asked IU out of nowhere, 'I have a wish. I wish you would sing and introduce this song.'"

While IU is known for complying with her friend's requests, she said that she wouldn't do it this time around. IU said, "Why? It's too hard."

Nevertheless, Yoo In Na egged her on and said, "Just cause. You're a good singer."

Most posts on the online community agreed that Yoo In Na knew about IU's relationship because the request came out of nowhere.

Recently, Chang Kiha and IU made an official announcement about their relationship and stated that they've been dating for two years.

IU's agency, Leon Tree stated: "After confirming with IU, we confirmed that she and Chang Kiha both have good feelings towards one another. Starting from two years ago, the two began interacting, and they began having good feelings towards each other. The two are currently happily meeting."

Watch the Yoo in Na's radio show below: