Heimdal is the southernmost borough in Trondheim, Norway named after the god Heimdall in Norse mythology. The area has been continuously inhabited since at least the Iron Age, and is rich in archaeological sites.

The area around the railway station was until 1964 the center of two separate local municipalities, Tiller and Leinstrand. The western part of Heimdal consists of the rural areas of Byneset, also a separate municipality until 1964. The eastern part of Heimdal, Tillerbyen, is a recent development, planned to ease the pressure on central Trondheim from the commercial boom in the city.

The area where Tillerbyen has been built was initially swamp, but it was drained in the 1930s as an airport was planned here. The German invaders of 1940 halted these plans, as they rather wanted an airport at Lade.

In 1963 the municipality of Trondheim bought the areas, and in 1966 they verified a development plan for a new tertiary and commercial hub that could lighten the development pressure on the crowded downtown areas.

Peter Gene Hernandez (born October 8, 1985), better known by his stage name Bruno Mars, is an American singer-songwriter and record producer. Raised in Honolulu, Hawaii by a family of musicians, Mars began making music at a young age. He performed in various musical venues in his hometown throughout his childhood. He graduated from high school and then moved to Los Angeles, California to pursue a musical career. Mars produced songs for other artists, joining production team The Smeezingtons.

Mars had an unsuccessful stint with Motown Records, but then signed with Atlantic Records in 2009. He became recognized as a solo artist after lending his vocals and co-writing the hooks for the songs "Nothin' on You" by B.o.B, and "Billionaire" by Travie McCoy. He also co-wrote the hits "Right Round" by Flo Rida featuring Ke$ha, and "Wavin' Flag" by K'naan. In October 2010, he released his debut album, Doo-Wops & Hooligans. Anchored by the worldwide number-one singles "Just the Way You Are" and "Grenade", the album peaked at number three on the Billboard 200. Mars was nominated for seven Grammys at the 53rd Grammy Awards, winning Best Male Pop Vocal Performance for "Just the Way You Are".

The Script are an Irish rock band from Dublin. Based in London after signing to Sony Label Group imprint Phonogenic, the band released their eponymous debut album in August 2008, featuring the hit songs "The Man Who Can't Be Moved" and "Breakeven". The album debuted at number one in Ireland and the UK. Their second album, Science & Faith, was released in September 2010, and contains the hit songs "For the First Time" and "Nothing". The album debuted at number one in Ireland and the UK, and number three on the US Billboard 200.

Their music has been featured in many video games and many popular television programs including 90210, Ghost Whisperer, The Hills, Waterloo Road, EastEnders, Made in Chelsea and The Vampire Diaries. Frontman Danny O'Donoghue is also a coach on The Voice UK.

Danny O'Donoghue and Mark Sheehan met in a club in The Liberties area of Dublin, Ireland near the Guinness brewery, gravitating to each other through a shared liking of music, and in particular a love of R & B music (Rhythm and Blues). "At that time, MTV only came on in Dublin after midnight, it was the fuzzy channel, and for my generation urban culture was just a wave through us all," explains Sheehan. "It wasn't about gangs and guns; it was fashion and fun, singing and dancing."

Sir Elton Hercules John, CBE (born Reginald Kenneth Dwight on 25 March 1947) is an English rock singer-songwriter, composer, pianist and occasional actor. He has worked with lyricist Bernie Taupin as his songwriter partner since 1967; they have collaborated on more than 30 albums to date.

In his four-decade career John has sold more than 250 million records, making him one of the most successful artists of all time. His single "Candle in the Wind 1997" has sold over 33 million copies worldwide, and is the best selling single in Billboard history. He has more than 50 Top 40 hits, including seven consecutive No. 1 US albums, 56 Top 40 singles, 16 Top 10, four No. 2 hits, and nine No. 1 hits. He has won six Grammy Awards, four Brit Awards, an Academy Award, a Golden Globe Award and a Tony Award. In 2004, Rolling Stone ranked him Number 49 on its list of the 100 greatest artists of all time.

John was inducted into the Rock and Roll Hall of Fame in 1994. Having been named a Commander of the Order of the British Empire in 1996, John received a knighthood from Queen Elizabeth II for "services to music and charitable services" in 1998.

Kurt Erik Kleppe Nilsen (born September 29, 1978) is a Norwegian pop/country singer. He won the first season of the Norwegian version of the reality television show Pop Idol, which aired on TV 2 in May 2003. He then won a one-off international version of Pop Idol, called World Idol on January 1, 2004, featuring winners of the various national Idol shows.

Upon leaving school, Nilsen made his living as a plumber. Nilsen became the lead singer in the Norwegian band Fenrik Lane. He is a left-handed musician and plays his guitar with the strings upside down. He appeared on and won Norwegian Idol with 54% of the votes against Gaute Ormåsen. He is one of only seven contestants in the Idol (Norway) history who succeeded in staying out of “bottom three/two” places in weekly votes.

His subsequent single, "She's So High", written by Tal Bachman, went straight to number one in the Norwegian singles chart and is among the biggest-selling singles in Norway to date. His debut album was simply called I.

He subsequently won the vote for the World Idol title on January 1, 2004, singing the hit "Beautiful Day" by U2, beating competitors from ten other nations, including the more famous Idols, Britain's Will Young, and favourite Kelly Clarkson of the United States, and scoring the first place in 10 out of 11 countries eligible to vote for him (Norwegian voters being unable to vote for him).