Guess the Youtuber challenge

1: This youtuber was the first to be on youtube but... (he swares) and hes not popular nowadays

2: this youtuber has two people in it they do challenges and 3am videos and they have a sis in it

3: this youtuber happens to be REALLY popular and they do videos of them with mattyb

4: this youtuber has dated justin and AND all the dates have been RUINED!!!

5: this youtuber does videos of him reacting to different videos

6: This youtuber is also very popular, (she) and shes very FUNNY

7: this youtuber has been in one of joey's videos