Texas Substitute Teacher 'Relieved Of Duty' After Belting Out Britney Spears Karaoke During Class

A substitute teacher covering a class at Bowie High School in Austin was "relieved of duty" for bringing a karaoke machine to class and singing Britney Spears's "Toxic."

Students filmed the impromptu show and tell, and the footage obtained by KXAN-TV showed the teacher sitting behind the desk with mic in hand as an amateur light show accompanied his performance.

Here is one clip filmed by students in the class.

According to an Austin Independent School District representative, the teacher was asked to leave after the first period because he “wasn’t following [the district’s] best practices.”

Contrary to rumors, the man was not a prankster but was, in fact, a registered substitute teacher who was placed to cover the class.

AISD confirmed the performing teacher was not arrested. A spokesperson for the district said, “I’ve heard worse Britney Spears covers, but the lights are a bit much."

The district added that while the teacher did not have an official AISD badge, he was checked in through the visitor system–which includes a background check–and that "all processes were followed."

“It was simply a case of a substitute not following our practices," said the district.

People didn't know what to say. Some were conflicted.

While others were highly amused.

"Toxic" won a Grammy for Best Dance Recording, and it marked Britney's first Grammy win in her career.

It is unclear what prompted the teacher to bust out with the popular Britney tune from her fourth studio album, In the Zone, but it was speculated he was giving a masterclass in all things Britney–who last month was freed from her nearly 14 years of conservatorship.

Los Angeles County Superior Judge Brenda Penny deemed the legal arrangement of having the singer's personal and financial affairs controlled by others was no longer necessary.

In an Instagram video last month, the 40-year-old singer said:

“I’ve been in a conservatorship for 13 years."

“It’s a really long time to be in a situation you don’t want to be in. So, I’m just grateful, honestly, for each day.”