I discovered Got7 by clicking the Just Right MV because it was in my recommended on YouTube. These were my first impressions of the group.

Overall Group:

First thought: "Aw they're so cute! Not sure if I'd stan them tho."
Now: I stan them. T_T

Jackson:

First thought: "Why is there a German guy in a Kpop group? He's probably the hoe of the group."
Now: Omfg Ghost, he's Chinese you freaking racist. But the hoe part was correct. ╮(╯∀╰)╭

Mark:

First thought: "Wowowow! He seems like he's the loud jokester of the group."
Now: WTF MARK WHY DON'T YOU TALK ( ; Д ; )

Youngjae:

First thought: "OMFG HIS VOICE! (but why does e look like he's on a child version of Jeopardy)
Now: He's so freaking adorable YESS YOUNGJAE SING MY BEAUTIFUL ANGEL!! (*≧∀≦*)

Jinyoung:

First thought: "He's so cute and sweet! I just want to pinch his cheeks! 
Now: O e savage Jinyoung coming thru (￣▽￣)ゞ

JB:

First thought: "WOaH there where have you been all my life?" (๑♡3♡๑)
Now: *sees picture of him* JAEBUMMM! *hears his voice* JAEBUMMM! *thinks of him* JAEBUMMM!

Yugyeom:

First thought: "Why do you seem like the manliest one yet you're on a toy zebra?" (・・；)
Now: He's so precious *cries in corner*

BamBam:

First thought: DAMMNN BOIII! CHOKE ME WITH THAT FROOT LOOP PLZ OMFGJSKLSDKDHFDKS
Now: My thoughts haven't changed (￣ω￣)