In baseball, the rules state that a batted ball is considered in flight when it has not yet touched any object other than a fielder or his equipment.

Once a batted ball touches the ground, a fence or wall, a foul pole, a base, the pitcher's rubber, an umpire, or a baserunner, it is no longer in flight. A batted ball that passes entirely out of the playing field ceases to be in flight when that occurs.

A special rule exists in covered baseball facilities (retractable or fixed roofed), where a batted ball striking the roof, roof supporting structure, or objects suspended from the roof (e.g., speakers) while in fair territory is still considered to be in flight. Rules for batted balls striking any of those objects in foul territory differ between ballparks, with most considering such a ball to still be in flight, and some considering it to be a foul ball and dead from the time it strikes.

If a batted ball (other than a foul tip) is caught in flight, the batter is out—called a fly out—and all runners must tag up. A batted ball cannot be ruled foul or fair while in flight; a batted ball that is past first or third base will be called foul or fair based on where it ceases to be in flight, or where it is first touched by a fielder, whichever occurs first. A foul tip, which by definition is always caught in flight, is a strike by special rule, and not an out.

Dwayne Michael Carter, Jr. (born September 27, 1982), better known by his stage name Lil Wayne, is an American rapper. At the age of nine, Lil Wayne joined Cash Money Records as the youngest member of the label, and half of the duo, The B.G.'z, with B.G.. In 1997, Lil Wayne joined the group Hot Boys, which also included rappers Juvenile, B.G., and Young Turk. Hot Boys debuted with Get It How U Live! that year. Lil Wayne gained most of his success with the group's major selling album Guerrilla Warfare, released in 1999. Also in 1999, Lil Wayne released his Platinum debut album Tha Block Is Hot, selling over one million copies in the U.S.

Although his next two albums Lights Out (2000) and 500 Degreez (2002) were not as successful (only reaching Gold status), Lil Wayne reached higher popularity in 2004 with Tha Carter, which included the single "Go D.J." Wayne also appeared on the Destiny's Child top ten single "Soldier" that year. In 2005, the sequel to Tha Carter, Tha Carter II, was released. In 2006 and 2007, Lil Wayne released several mixtapes and appeared on several popular rap and R&B singles. His most successful album, Tha Carter III, was released in 2008 and sold over 1 million copies in the U.S. its first week of release. It included the number-one single "Lollipop" featuring Static Major. It also includes the singles "A Milli" and "Got Money" featuring T-Pain and won the Grammy Award for Best Rap Album.