Everyone knew that Girls' Generation's comeback wouldn't be a quiet one, but some fans are now wondering if former member Jessica was originally meant to be part of their latest song, "Catch Me if You Can." 

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In the clip shown above, a netizen upload a clip of Jessica singing the line, "My heart," and compares it to that of the Girls' Generation members singing the same words in the official release. Although the line is short and generic, fans took notice that Jessica sang it in a similar fashion as the Girls' Generation members, generating speculation if she was meant to originally be a part of the song. As Jessica's clip was taken from her summer 2014 'OnStyle' mini-series 'Jessica & Krystal,' fans wonder if "Catch Me if You Can" was originally meant to be released much earlier, but was delayed after Jessica was asked to leave the group. 

Some commentators stated, "I knew it, when I was watching the MV... I knew that YoonA's lines must have been Jessica's before.... I knew it was her line...," "YoonA's 'I'm going to find my heart' was definitely Jessica's line before. SM never gave YoonA a high note like that," and, "LOL Jessica's clip was broadcasted somewhere between July and August 2014.... So they already started making the single since last year? Damn.... Please put Jessica back in group NOW."

What do you guys think? Are fans looking too much into it or is it a possibility? 

[Thanks to everyone who sent in the tip!]