This is what probably 90% of the comments on his videos says.
This is Joe Sugg.
Yes, his fan base mostly consist of teenage girls.
Joe Sugg is a 24 year old British youtuber with a channel called ThatcherJoe. He has more than 6 million subscribers on his youtube channel.
On his channel you can see a lot of fun stuff like challenges or pranks on his roommate that you might know, Casperlee, who also has a famous youtube channel. He likes to collab with other youtubers like his own sister or Oli White.
Besides his mainchannel he also has a gaming channel (ThatcherJoeGames) and a vlog channel (ThatcherJoeVlogs).
Make sure to go check some of his funny and entertaining videos.