Story highlights The actor tweeted "Sorry...still calling you Bruce"

The former Nickelodeon star has deleted his tweets

(CNN) Former Nickelodeon star Drake Bell is under fire after he tweeted "Sorry...still calling you Bruce" when the world met Caitlyn Jenner on Monday.

After Vanity Fair released its new cover featuring Jenner and the headline "Call me Caitlyn," fans quickly embraced the former Olympic athlete, who at 65 recently revealed that she would be transitioning. Jenner joined Twitter, tweeting the cover and an introduction to who she is now.

#CallMeCaitlyn immediately began trending. Jenner quickly broke the record held by President Obama's Twitter account, attracting 1 million followers in just four hours. Naturally, she tweeted about it.

Another Jenner world record, and at 65? Who'da thought! Humbled & honored to have reached 1M followers in 4 hrs. Thank you for your support. — Caitlyn Jenner (@Caitlyn_Jenner) June 1, 2015

The response to Jenner and the cover was overwhelmingly supportive , but Bell stepped on a social media landmine with his response. And the Internet let him know it.

@DrakeBell just lost all respect for you — megan // 70 (@fatalcabello) June 1, 2015