Cassie Feat. Lil Wayne: Official Girl (2008) watch online HD

The accompanying music video was directed by Chris Robinson and its concept revolves around Cassie's interpretation of the track's message, in which she grows frustrated over the uncertainty of a relationship with a man before deciding to break things off with him. The video's dance segments and styling generated Aaliyah comparisons. Cassie can be seen in a Bugatti Veyron in the video. She visited BET's 106 and Park on September 23, 2008, to introduce the music video.

The track features vocals by American rapper Lil Wayne, who wrote his guest verse, while the original composition was written by members of collective The Clutch including Balewa Muhammad, Candice Nelson, Ezekiel Lewis, along with Marcella Araica and Nathaniel "Danja" Hills.

Production of the song was handled by Nathaniel Hills.

The song was first released for digital download in the United States on August 5, 2008, through Bad Boy and NextSelection in association with Atlantic Records.

"Official Girl" is an R&B song, with the beat being referred to as "candy-floss production."

Cassie stated the track stood out to her for its relatability with a good message and for being musically different.

The song's lyrics consist of Cassie seeking status confirmation in a relationship as she is presented at a crisis between vulnerability and authority.

Cassie clarified its meaning as "standing up for what you want out of it."

The accompanying music video was directed by Chris Robinson.

"Official Girl" debuted at number one on the US Billboard Hot Videoclip Tracks and the Norway Digital Songs charts.

The music video topped MTV's Total Request Live countdown.

The video's dance segments and styling generated Aaliyah comparisons.

"Official Girl" was made available for digital download on August 5, 2008, via the iTunes Store.

A solo version of "Official Girl" was made available for streaming on Cassie's MySpace page on April 10, 2008.

Lil Wayne called it "wonderful" to work with Cassie, "she's a beautiful person, her voice is crazy," continuing that the reason he got on the track was due to Danja's "tricky" and creative production which he considered difficult and challenging to lay his rap verse over.

"Official Girl" is an R&B song, with a length of four minutes and seventeen seconds.

August Brown of the Los Angeles Times wrote the fact that Cassie is "a total cypher for whatever producer she's working with makes for some pretty interesting moments of electro-R&B minimalism" and "such an aggressive non-presence in any song still makes for striking radio singles," despite the track not being her best work.

MTV's Jocelyn Vena felt that Cassie's "personality comes through on her latest single," describing it as "a song dedicated to independent-spirited ladies everywhere."

Jonathan Reyes of AllHipHop praised Danja's production noting "it packs the signature that we've grown to love from the Virginia native," continuing, "The lyrics are simple and really show the Clutch's superior ability to adapt to each artist they write for. As a statement, "Official Girl" really makes one."

Waqar Hassan of AXS pointed out that "the beat on this song remains in your head for years," and applauded the performers: "The singing on this track is perfect too. Lil Wayne shows up in the middle of the track to show his rapping skills and does his part extremely well."

The Guardian's Alex Macpherson commented that "producer Danjahandz swathes Cassie in candy-floss production" on the track as she demands clarity in a relationship, "she cajoles, threatens, pleads, swears she can measure up. The song climaxes with the frankly brilliant line, 'I ain't making ultimatums - I'mma tell you like this verbatim!'"

Writing for Dummy Mag, Tom Lea of Local Action Records remarked that the song "showcases Cassie at the perfect crossroads between vulnerability ("I wanna be your official girl") and authority ("be a shame to say you lost me / but if you want that it's a wrap and I won't look back")," concluding "It's that perfect juxtaposition between hard and soft that makes so much R'n'B work."

Fact Magazine stated: "The source material on "Official Girl" is pretty flawless - Cassie's brilliant, and Lil Wayne's always great when he's a) talking about giving oral sex in the way that most rappers won't ("I'll never diss you / and I'll kiss you / on your little pearl") and b) thinking he's said something really clever when he actually hasn't ("I know I can make you come... right back!")."

BET listed "Official Girl" as one of Cassie's best collaborations, expressing: "Every girl has questions if they're waiting for their boo to make it official, so the message was clear. It was time for her man to step up, make it official and let love rule she went in!"

CFCF remixed the track, with The Fader detailing, "where he takes the robotic detachment of the original and transforms it into a song full of warm sci-fi synth ripples that conveniently emphasize the ultra-creepiness of Wayne's verse."

The Blessings remixed it for Skydiver, a 2010 remix compilation album by independent British label Local Action tributing Cassie.

Matthew Schnipper of The Fader wrote that "he's reassigned the upper hand to Cassie, an ultimatum song, not a dear diary rant about side chick status. That re-powering is Deadboy's MO, a partnership between sadness and triumph."

Deadboy released his reworked "Unofficial Girl," included on his 2010 EP Cash Antics Volume 1.

Cassie described the video's plot as "a series of things," where she is in the "crazy-girl stage."

Along with several background settings and wardrobe changes, it also includes a series of dance shots, with Cassie considering her choreography to be at a "whole new level," and that she had "never seen myself dance like this before."

The music video ranked at ninety-three on BET: Notarized Top 100 Videos of 2008 countdown.