"Leavin'" is a song by American singer Jesse McCartney. It is the lead single from McCartney's third studio album Departure (May 20, 2008), and it was sent to the U.S. mainstream radios on March 10, 2008. It remains one of McCartney's biggest hit singles in the United States to date, and one of the biggest songs of 2008, receiving huge radio and mainstream play reaching number one in the Billboard Top 40 Mainstream and almost took the top spot in the Billboard Pop 100 chart, but was over taken by "I Kissed A Girl" by Katy Perry, with the song having to take Number 2. Also, the song reached the Top 10 in the Billboard Hot 100 and went platinum with over 2 million downloads on iTunes. Leavin' also peaked at No.1 in the Billboard Hot Dance Club Play.

The single was released on iTunes on April 22, 2008. The single is available on the UK iTunes. The UK release of the single was released on June 9, 2008, according to McCartney's Official UK Site (www.jesse-mccartney.co.uk) followed by his album Departure on June 16, 2008. The UK download was released via 7digital and the music video received heavy airplay on music video channels across the UK.

Jesse McCartney (born April 9, 1987) is an American singer-songwriter, actor, and voice actor. McCartney achieved fame in the late 1990s on the daytime drama All My Children as JR Chandler. He later joined boy band Dream Street, and eventually branched out into a solo musical career. Additionally, McCartney has appeared on shows such as Summerland and Greek. McCartney also is known for lending his voice as Theodore in Alvin and the Chipmunks and its sequels, as well as voicing the characters Roxas and Ventus in the video games series Kingdom Hearts developed by Square Enix.

McCartney was born on April 9th in Westchester, New York, the son of Ginger (née Sarber) and Scott McCartney. He began performing in local community musicals at the age of seven, before joining the national tour of The King and I at age ten along with Phil of the Future star Ricky Ullman. Here he played the character of Louis. In 1998, he sang with the group Sugar Beats and can be heard on their 1998, 1999, and 2000 CD releases.

Shelby Lynne (born Shelby Lynn Moorer, October 22, 1968, Quantico, Virginia) is an American singer and songwriter. The success of the 1999 album I Am Shelby Lynne led to her winning the Grammy Award for Best New Artist, even though she had been active in the music industry for some time. She released a Dusty Springfield tribute album called Just a Little Lovin' in 2008. Since then she has started her own independent record label, called Everso Records, and released three albums: Tears, Lies and Alibis, Merry Christmas, and Revelation Road.

Shelby Lynne was born in Virginia but grew up in Mobile, Alabama,where she attended Theodore High School. Music was an important part of the Moorer family. Her father, who worked as an English teacher and a juvenile corrections officer, played the guitar, while her mother was a singer. Her father also drank a lot and eventually became abusive. In August 1986, when Lynne was 17, her father shot and killed her mother and then himself. She and her younger sister Allison Moorer subsequently moved in with relatives.