As a singer, he churned out songs like "Aashiq Banaya Aapne", "Tera Suroor", "Zara Jhoom Jhoom", "Jhalak Dikhlaja", "Shakalaka Boom Boom", "Hookah Bar", "Chalao Na Naino Se", "Tandoori Nights" which were popular. Reshammiya's music has a style of composition based on a fusion of Western and Indian classical music accompanied by techno beats. He started his acting career with his debut film, Aap Kaa Surroor.
Reshammiya was the first Indian singer to perform at the Wembley Arena and the Heineken music hall in Amsterdam.
Reshammiya was actively involved in mentoring and judging the singing competition, Sa Re Ga Ma Pa Challenge on Zee TV. His group was known as Jai Mata Di Let's Rock Gharana. He was the winning mentor of the show in 2007. In 2009, Vaishali Mhade, a female contestant from his Rock Gharana, won the singing competition. He is also the team captain, judge and mentor on Star Plus's show, Music Ka Maha Muqqabla for the team Himesh's Warriors. Reshammiya was also the judge of the musical reality show Sur Kshetra which was telecasted on Sahara One. Reshammiya appeared as the special guest in the Grand Finale of 'Jo Jeeta Wohi Superstar' 2 where he also trained the top four contestants.
His international debut is, A * is killed, with french director Christopher Lenoir, based on Michael Jackson's death.
On 4 November 2013, it was announced that Reshammiya will be acting and producing a movie named The Xposé.
In his debut film as an actor, Aap Kaa Surroor, Reshammiya added a song Tanhaiyaan from Boney Kapoor's proposed film Milenge Milenge. Initially, Reshammiya had composed the song for Kapoor's film but later decided to use it for his own movie. Tips, which held the audio rights of Milenge Milenge, accused Reshammiya of copyright violation, as audio rights for Aap Kaa Surroor – The Real Luv Story were acquired by T-Series. However, Reshammiya defended himself saying that he had made Kapoor listen to the song, but it was not included in Milenge Milenge. He also claimed to have tried to get in touch with Kapoor for seven months, and since there was no progress on the film, he decided to use the song for his own movie.
Reshammiya won the Filmfare Award for Best Male Playback Singer in 2006 for Aashiq Banaya Aapne and also received several awards like Star Screen Award, IIFA Award, Zee Cine Award for this song and became first ever Bollywood singer to receive Filmfare Award for his debut song. He also received several nominations for his Music Direction. He was presented the Phalke Best Supporting Actor Award for Khiladi 786 at 13th Dadasaheb Phalke Academy Awards.
Himesh Reshammiya was born to Vipin Reshammiya, a veteran music composer, and Madhu Reshammiya in Bhavnagar, Gujarat, on 23 July 1973. At the age of 21, Reshammiya married Komal and they have a son, named Swayam. On 12 September 2016 it was reported that Himesh and Komal have mutually agreed to separate and file for divorce.On Friday, 11 May 2018 Himesh married his long time girlfriend actress Sonia Kapoor.
After a gap of 10 years since the release of Reshammiya's first studio album Aap Kaa Surroor, On Thursday, 15 September 2016 trailer of his second studio album Aap Se Mausiiquii was released on YouTube. The album has 10 songs composed and sung by Reshammiya, the first song of the album was released on Friday, 4 November 2016. The entire album was released on 5 December, 2016.
Reshammiya, along with his father Vipin Reshammiya, has produced and distributed films under the banner "HR Musik Limited".