Esterlyn is a Christian worship band from Boise, Idaho performing throughout the United States as well as globally. Esterlyn released their debut national album in 2010 through VSR/EMI before selling over 25,000 units independently. In 2011, the song "Freedom is Here" was listed as a top 10 radio single on Air1 radio. Esterlyn is known for their focus on Christian ministry and for writing worship songs played in many churches. The band also play at Christian conferences and camps throughout the year and lead worship through song at Calvary Chapel in Boise, Idaho. They have gained significant fans throughout the country through touring and playing with Kutless, Acquire The Fire, festivals, and Worship Conferences. Esterlyn is focused on missions as well as child adoption and the band derives its name from the founder's adopted niece from China. They were previously known as Grand Prize, before changing their name to Esterlyn and have played each year at a local concert known as Light In the Night also put on by Calvary Chapel in Boise, Idaho. The band changed there name once again, according to their website, to Luke Caldwell, to reflect the name of the lead singer and founder.