A miller usually refers to a person who operates a mill, a machine to grind a cereal crop to make flour. Milling is among the oldest of human occupations. "Miller", "Milne" and other variants are common surnames, as are their equivalents in other languages around the world ("Müller" or "Mueller" in German, "Molinari" in Italian etc.). Milling existed in hunter gatherer communities, and later millers were important to the development of agriculture.

The materials ground by millers are often foodstuffs and particularly grain. The physical grinding of the food allows for the easier digestion of its nutrients and saves wear on the teeth. Non-food substances needed in a fine, powdered form, such as building materials, may be processed by a miller.

The most basic tool for a miller was the quern-stone - simply a large, fixed stone as a base and another movable stone operated by hand, similar to a mortar and pestle. As technology and millstones (the bedstone and rynd) improved, more elaborate machines such as watermills and windmills were developed to do the grinding work. These mills harnessed available energy sources including animal, water, wind, and electrical power. Mills are some of the oldest factories in human history, so factories making other items are sometimes known as mills, for example, cotton mills and steel mills. These factory workers are also called millers.

Miley Ray Cyrus (born Destiny Hope Cyrus; November 23, 1992) is an American actress and pop singer-songwriter. She achieved wide fame for her role as Miley Stewart/Hannah Montana on the Disney Channel sitcom Hannah Montana.

Cyrus recorded music for the soundtracks, Hannah Montana (2006) and Hannah Montana 2/Meet Miley Cyrus (2007), released by Walt Disney Records. With the success of the Hannah Montana franchise she established herself as a teen idol. In 2007, Cyrus signed to Hollywood Records to pursue a solo career. She embarked upon the Best of Both Worlds Tour the same year, in which she performed as both herself and in character as Hannah Montana. The tour was eventually turned into a high-grossing concert film titled Hannah Montana & Miley Cyrus: Best of Both Worlds Concert (2008). In July 2008, Cyrus released her first solo album, Breakout (2008), which was commercially successful.

She began her foray into film by providing the voice of "Penny" in the animated film Bolt (2008). Cyrus earned a nomination for the Golden Globe Award for Best Original Song for her performance of Bolt's theme song, "I Thought I Lost You". She also reprised her role as Miley Stewart/Hannah Montana in Hannah Montana: The Movie (2009). The Hannah Montana: The Movie' soundtrack introduced her to new audiences within country and adult contemporary markets.

Ryan John Seacrest (born December 24, 1974) is an American radio personality, television host and producer. He is known internationally as host of the top-rated primetime talent showcase American Idol. He has been nominated for an Emmy award in the "Outstanding Host for a Reality or Reality-Competition Program" category for his work on American Idol. He won a Daytime Emmy Award for co-hosting the 2005 Walt Disney World Christmas Day Parade with Regis Philbin and Kelly Ripa. As a television producer, Seacrest has won an Emmy for the ABC show Jamie Oliver’s Food Revolution. On radio, Seacrest is host of On Air with Ryan Seacrest, his market-topping #1 nationally syndicated LA morning drive-time radio show for Clear Channel’s 102.7 KIIS-FM. , as well as a nationally-syndicated Top 40 radio show. Seacrest hosted the 59th Primetime Emmy Awards on September 16, 2007. Seacrest has extensive deals with brand heavyweights Proctor & Gamble, Coca-Cola and Microsoft, and has a strategic marketing and technology alliance with Eventful, Inc.