A savanna, or savannah, is a grassland ecosystem characterized by the trees being sufficiently small or widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses. Some classification systems^[which?] also recognize a grassland savanna from which trees are absent. This article deals only with savanna under the common definition of a grassy woodland with a significant woody plant component.

It is often believed that savannas feature widely spaced, scattered trees. However, in many savannas, tree densities are higher and trees are more regularly spaced than in forest. Savannas are also characterized by seasonal water availability, with the majority of rainfall confined to one season. Savannas are associated with several types of biomes. Savannas are frequently in a transitional zone between forest and desert or prairie. Savanna covers approximately 20% of the Earth's land area. The largest area of savanna is in America.

Joshua Winslow "Josh" Groban (born February 27, 1981) is an American singer, songwriter, musician, actor, and record producer. His first four solo albums have been certified multi-platinum, and in 2007, he was charted as the number-one best selling artist in the United States with over 21 million records in that country. To date, he has sold over 24 million albums worldwide, and is the top selling classical artist of the 2000s in the US, according to Nielsen SoundScan.

Groban originally studied acting, but as his voice changed, it developed into a "significant instrument". Groban attended the Los Angeles High School for the Arts, a free public school where students received a conservatory-style education. His life changed when his vocal coach, Seth Riggs, submitted a tape of Josh singing "All I Ask of You", from The Phantom of the Opera, to Riggs' friend, producer, composer and arranger David Foster. Foster called him to stand in for an ailing Andrea Bocelli to rehearse a duet, "The Prayer," with Celine Dion at the rehearsal for the Grammy Awards in 1998.Rosie O'Donnell immediately invited him to appear on her talk show. Foster asked him to sing at the California Governor's Gray Davis' 1999 inauguration. He was cast on Ally McBeal by the show's creator, David E. Kelley, performing "You're Still You" for the 2001 season finale.