Pharrell was at first reluctant to record with Thicke, feeling the then forthcoming album was good enough on its own telling Vibe, “I thought his album was so dope already. I didn't think it was necessary.” and stating to MTV, "I felt like it didn’t need anything from me,[...]The quality, the musicality, it’s just upper-echelon." Label executive Jimmy Iovine advocated the pairing, believing it would be a favorable association for Thicke in the eyes of an audience not yet familiar with his work. With Iovine's support, the two agreed to go forward with the collaboration.

The single was officially released August 9, 2005. While expected to be a big hit, it failed to chart on the Billboard Hot 100 and only peaked at #65 on Billboard's Hot R&B/Hip-Hop Songs chart.

Although the connection with Pharrell did not help propel the single to great chart success as anticipated, it did become a minor hit on urban radio and a popular song in clubs. It was at a club in Miami that it first caught the ear of Busta Rhymes, who was impressed by the people's frenzied reaction to it when it was played. Shortly after, Busta acquired the instrumental and recorded his own verses. The remix began appearing on mixtapes and generated enough interest that Thicke, Busta Rhymes, and Spliff Star went on to shoot an official music video for the remix which was released in the summer of 2006.

The video was filmed in August 2005 in the Dominican Republic. This video was shot with mostly natural lighting using mirrors and bounce boards as the locations were so remote that there were no cables available long enough to connect to the generator. Some of the models were brought from Mexico, Trinidad and Tobago, and two were local models from the Dominican Republic. This video was commissioned by Interscope for Star Trak. Pharrell was flown into the area of the location and then brought by boat to the beach as the roads were too dangerous for access after a hard rain the night before his performance shot. Thicke was also brought by boat to the beach locations and had to be driven in by 4WD to the waterfalls.

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Wikipedia