The internet鈥檚 most popular YouTuber was trending alongside thousands of tweets condemning Islamophobia and sharing the hashtag 鈥#NewZealandStrong鈥 following mass shootings at two New Zealand mosques on Friday.

鈥淧ewDiePie鈥 is the username for Felix Kjellberg, an internet personality and video game commentator with more than 89 million subscribers on , the most of any other account. The username was reportedly uttered in a live video broadcast online by the shooter before the attack.

鈥淪ubscribe to PewDiePie,鈥 a man is heard saying in the clip, which was removed by Facebook early Friday morning. The shootings left 49 dead and dozens injured.

PewDiePie has garnered more than 20 billion views for his vlogs and video game commentary, which are considered by many to be humorous. The hashtag 鈥溾 was popularized by his fans in recent months in efforts, both seriously and in jest, to keep his subscriber base stronger than Indian music record label T-Series.

The 29-year-old YouTuber in response. 鈥淚 feel absolutely sickened having my name uttered by this person,鈥 wrote Kjellberg. 鈥淢y heart and thoughts go out to the victims, families and everyone affected by this tragedy.鈥

He has faced a series of controversies online for statements made in his videos. In 2017, he paid a pair of men to hold up a banner reading 鈥,鈥 which he claimed was 鈥渏ust a joke鈥 to demonstrate 鈥渉ow crazy the modern world is.鈥 The Disney Digital Network cut ties with PewDiePie after the controversy. The same year, he called another video gamer the during a livestream, leading some fans to tweet their disapproval with the 鈥#PewdiepieIsOverParty鈥 hashtag.

"I'm disappointed in myself because it seems like I've learned nothing from all these past controversies,鈥 he said in a video apology. 鈥淚'm really sorry if I offended, hurt or disappointed anyone with all of this. Being in the position that I am, I should know better."

Last year, he endorsed a YouTube channel called E;R or 鈥淓semicolonR,鈥 which some users have dubbed 鈥溾 for showing clips of Hitler speeches and apparently mocking the death of a woman at a 2017 Unite the Right rally in Charlottesville, Virginia. In a , Kjellberg said 鈥渙opsie doopsie鈥 and claimed he was unaware of the neo-Nazi content on E;R. He revoked his endorsement of the channel and re-edited a video to remove the recommendation.

In December, a Seattle reportedly received threats after a video circulated of him criticizing PewDiePie鈥檚 videos in a social studies class for promoting anti-Semitism and racism. "Every time you retweet one of these things or every time you promote this idea, you are promoting ignorance, racism, genocide and anti-Semitism,鈥 the teacher said. Messages on the anonymous online message board 4chan reportedly called for the release of the teacher鈥檚 personal information.

PewDiePie鈥檚 wide fanbase, which has become known online as the 鈥,鈥 netted the man more than in 2018 alone, through monetized content.