It was written and produced by Christian Karlsson and Pontus Winnberg (known collectively as Bloodshy & Avant), with additional writing by Henrik Jonback and Angela Hunte.

The dance-rock song features usage of electric guitars, and its lyrics allude to having a good time and not caring about other people's judgement.

It was also successful worldwide, reaching the top ten positions in 14 countries, including Australia, Denmark, and the United Kingdom.

The music video was co-directed by Bille Woodruff and Spears (who makes her directorial debut), and is credited as her alter ego "Mona Lisa".

He also noted the song is "filled with faux string bursts and mock-'70s synth gurgle (think Zapp/Gap Band era) and plenty of treated guitar and bass".

1s before taking time out to sing lullabies to her brood",[10] while Christy Lemire of the Associated Press noted that both songs "provide Britney with further opportunities to proclaim her need to have fun and be herself, which have been running themes throughout her last two albums".

[11] Ann Powers of Blender called "Do Somethin'" "a decent bit of crunk where she raps in a cutesy-poo drawl that suggests she could have nabbed the Dukes of Hazzard sexpot role from Jessica Simpson".

[13] Nayer Nissim, from Pink News, called it "a solid enough slab of dance pop, though it lacks that little bit of something special that distinguishes her very best singles".

[14] The staff from Entertainment Weekly placed it at number 33 on their ranking of Spears's songs; "when fans talk about whether or not Britney sounds like she's having any fun on her albums, 'Do Somethin'' should be the standard by which they measure".

Fizzing synths and harder drums pushed Britney into slightly left-field territory, something she'd continue to nurture on her next two albums[17] Although "Do Somethin'" was never physically released in the United States, the song peaked at number 100 on the Billboard Hot 100 due to digital downloads on April 16, 2005.

[4] Spears is credited as "Mona Lisa" in the video, as she said "I kinda think she's like my alter ego whenever I feel like being mean or possibly like bustin' people around to get stuff right ...

Spears ultimately added that working behind the camera inspired her to become a director in the future, explaining, "After doing about 20 videos, it gets kind of boring playing the same role.

[4] In the music video, Spears wears a pink midriff T-shirt reading "Love Boat" and a pin capelet going to a club named Hole in the Wall with four blond bandmates.

[26] On November 18, 2007, it was reported by Forbes that LVMH's Louis Vuitton won a lawsuit on 80,000 EUR (approximately $94,000 in USD) in damages for the close-up shots of the truck's dashboard, which featured the brand's logo without authorization.

The tribunal ruled that responsibility for the unauthorized use lay with Sony BMG, its subsidiary Zomba Group of Companies as well as MTV Online, and not Spears herself.

After a performance of "Breathe on Me" from In the Zone, in which Spears and her four female dancers picked a man from the audience and danced seductively around him, the stage went dark for a few seconds.

Shortly after, Spears took the stage again wearing a hot pink bra, a white fur coat and a jean skirt to perform the song.

However, on March 8, 2009, at the Tampa show, Spears suffered a wardrobe malfunction after her performance of "I'm a Slave 4 U", which caused the outfit being changed to a sparkly black bodysuit.