California Metal, the first of five compilation albums released by Regency Records in the late eighties, was designed primarily to showcase the talents of the numerous unsigned Christian metal bands that had arrived on the scene following the success of Stryper.
 "California Metal" was quickly followed by "California Metal Volume II" (1988), "East Coast Metal" (1988), "Underground Metal" (1989) and "Underground Metal 2" (1989).
 As a bonus, another album released by Regency along the preceding metal line was "Classic Metal" (1990).
 As far as the title ""California Metal"" implies, all of the artists participating on the project come from the state of music in question and bring a variety of metal styles ranging from classic metal, melodic metal, speed metal and commercial hard rock to it.
 What makes "California Metal" such a noteworthy release, nevertheless, is the fact it introduced several bands that in time would become household names in the growing Christian rock, hard rock and metal music communities: "Gardian" (soon to correctly rename itself as "Guardian"), Deliverance and Neon Cross.
 Other artists participating on the project include Barren Cross (who debuted the previous year with its Star Song release "Rock For The King") and Mastedon which is the studio project of former Kansas vocalist John Elefante and his brother Dino.
 Hero was the only band appearing on the album not to go on and make a name for itself.
"This Heart of Mine" is a 1946 song.
 This music standard was written by composer Harry Warren and lyricist Arthur Freed to be featured in the musical film score "Ziegfeld Follies".
 This song is introduced by Fred Astaire who danced with Lucille Bremer in a lavish and romantic dance.
 In the same film, Esther Williams swam in a water ballet to a softer, instrumental version of the song.
 Judy Garland and Maxine Sullivan have also recorded this song.
"Rise" is a song recorded by American singer Danny Gokey for his fourth album of the same name.
 The song is the title track and lead single from the album.
 Rise became Gokey's third No. 1 song on Billboard Christian Airplay chart.
 According to Gokey, the song is about how he overcame depression a few years prior to the song release.
Izabela Hannah is a Polish-born British ballroom and Latin American dancer.
 Born in Szczecin, Poland, Hannah began dancing jazz and ballet at the age of 9, and started ballroom and Latin American dancing as a teenager.
 During her competitive career she won international titles in Europe and the United States, winning the Polish Amateur Ballroom Championships in 2001 and again in 2002.
Magico Vento (Italian Magic Wind) is the character of an Italian comics book/western with the same name, issued monthly by Sergio Bonelli Editore.
 Magico Vento's true name is Ned Ellis, a former member of US Army who had become an Indian shaman.
 Graphically inspired to Irish actor Daniel Day-Lewis, Ellis is usually accompanied by Willy Richards, a journalist nicknamed Poe for his resemblance with the famous American writer.
"Nine in the Afternoon" is a song by American rock band Panic at the Disco, and the first single from the group's second album "Pretty Odd".
 It is the band's first song release that did not include the exclamation mark at the end of the "Panic" in the group's name, and was also the first song written for the album.
 The video was filmed on December 20 and December 21.
 It was the first song written after the band decided to scrap an entire album of songs that the members had been planning to release in the autumn of 2007.
 Panic at the Disco's first performance of "Nine in the Afternoon" was at Virgin Festival 2007.
 The song has gone under changes in key and lyrics since first being performed.
 This song was number 44 on "Rolling Stone"' s list of the 100 Best Songs of 2008.
Lucille Bremer (February 21, 1917 – April 16, 1996) was an American film actress and dancer.
Julianne Alexandra Hough ( ; born July 20, 1988) is an American dancer, singer, and actress.
 She is a two-time professional champion of ABC's "Dancing with the Stars".
 She was nominated for a Creative Arts Primetime Emmy in 2007 for Outstanding Choreography in season five of the show.
 Her first leading acting role was in the 2011 film remake of "Footloose".
 In September 2014, Hough joined "Dancing with the Stars" as a permanent fourth judge.
 Along with her brother Derek Hough (who is a six-time winner of the dancing show) and Tessandra Chavez, she won the Primetime Emmy Award for Outstanding Choreography in 2015.
 In 2016, she played Sandy in the live Fox television production of "".
Tony Charmoli (born June 11, 1922) is an American dancer, choreographer, and director.
 He began dancing on Broadway in such shows as "Make Mine Manhattan" but soon began choreographing for television with "Stop the Music" in 1949.
 Charmoli then choreographed dance sequences for the popular "Your Hit Parade", winning his first Emmy Award in 1955.
 He went on to direct and choreograph for some of the biggest stars including Dinah Shore, Lily Tomlin, Danny Kaye, Julie Andrews, Cyd Charisse, Shirley MacLaine, Mitzi Gaynor, and others.
 On Broadway, Tony choreographed "Ankles Aweigh" (1955) and "Woman of the Year" (1981) with Lauren Bacall.
"Hey Girl" was the fourth song release by popular British R&B group Small Faces.
 The song reached number ten on the UK Singles Charts in 1966.

Question: What year did a popular song release that was accompanied by dancing by a famous American dancer?
Answer: 1946