In 2006, Sweet was featured in a
USA Today article on up-and-coming "serious female singers." The same year, Sweet opened for
Paul Simon on tour in July and October 2006, and her debut album,
We Are One, was released by the
Razor and Tie label on March 6, 2007. Her songs "We Are One" and "Ready For Love" have been used on episodes of two daytime dramas, the
NBC TV series
Passions and the
ABC TV series
One Life to Live, respectively. "We Are One" was also featured on the NBC series
Las Vegas in the spring of 2007. She was the highest-charting indie label artist at the AC format in 2007 with airplay audience well exceeding 80 million. Remixes for "We Are One" were done by
Dave Audé, Radioactive Sandwich, Matt Piso, and Electronathon. Her cover of the
Aerosmith classic "
Dream On" was No. 1 for six weeks in a row on the
FMQB AC Chart. Sweet's mother died from cancer on December 16, 2011. Less than six months later, June 4, 2012, her father succumbed to bone marrow cancer after eight years with the disease. Haliene was working on her second album during this difficult time and recalls, "I was 23 years old and I felt I stood amongst the ash of the dreams of my life. But, like a phoenix, I can rise again." In August 2012, Sweet's second album,
Ashes of my Paradise was released through
Japan Victor Company. In 2013, she released her EP
Sirens. In January 2014, Sweet self-released a cover of the
Phil Collins song "
In the Air Tonight", and it was licensed by
NBC Television for the promo adverts for their new show called
Believe. The song was also featured in promo adverts for the Lifetime movie
Petals on the Wind, an adaptation of the
V.C. Andrews novel
of the same name. In February 2015, the track was licensed for another NBC promo, this time for the
Mark Burnett-produced
A.D. The Bible Continues. The remix returned in a TV spot for the television series
Gotham.
As Haliene In 2015, Sweet changed her stage name to Haliene, releasing her first collaboration on March 3,
The End with
Seven Lions on
Casablanca Records. She said her name was inspired from , the French word for breath. She later worked with Seven Lions again on "Rush Over Me", a collaboration with
Illenium and
Said The Sky that reached number 50 on the
Billboard Hot Dance/Electronic Songs chart. She first performed live at
Webster Hall, New York, March 5, 2015, with Seven Lions at his
Throes of Winter release party. Haliene has since performed all over the world at venues such as the
Red Rocks Amphitheatre,
Bill Graham Civic Auditorium,
Hollywood Palladium,
San Jose City National Civic Arena,
AFAS Live,
O2 Academy, ExchangeLA, the Jakarta Colosseum and the
Las Vegas Motor Speedway. In June 2017, she was the only singer to perform two times at the
Electric Daisy Carnival with Illenium and
Ferry Corsten at the festival which hosted over 400,000 attendees. In March 2018, she performed with Gareth Emery at Bill Graham Civic Auditorium to a sold-out crowd for his show "laserface". Since her debut, Haliene has collaborated with many leading DJs and producers including: ATB,
Blasterjaxx,
Seven Lions, Illenium,
Danny Avila,
Slander,
Project 46,
Aly & Fila, Standerwick, and Ferry Corsten. Sabrina Clark from Dance & Rave named her "dance music's new favourite girl". Haliene cites
Ella Fitzgerald and
Delerium as some of her inspirations, although her musical interests are "all over the place". In November 2016, Haliene wrote the song "
Saving Light" with Gareth Emery,
Roxanne Emery, Karra and Matthew Steeper. It was released January 30, 2017, by the Canadian label,
Monstercat. The song reached number one on the
Beatport overall chart within a week of its release, becoming the first
trance single to do so in 5 years. The artists partnered with the UK's largest anti-bullying charity
Ditch the Label, launching a campaign titled after the song to raise money for the victims of bullying. On December 19, 2017, Armin van Buuren chose "Saving Light" as one of his top 50 tracks to comprise the 2017 trance mix album,
A State of Trance 2017. van Buuren later concluded 4-hour radio show special with the announcement that Saving Light had won the "Tune of the Year" award by popular vote for his widely syndicated radio show
A State of Trance. On May 26, 2017, Haliene released a collaborative
science fiction-influenced
trance album,
Blueprint with Dutch DJ
Ferry Corsten on his label
Flashover Recordings. The album contains a storyline narrated by American actor
Campbell Scott and illustrations from Canadian visual artist Oska. Haliene also voice-acted, contributing dialogue as the main female protagonist Vee. She collaborated with Corsten, singing on five tracks and contributed songwriting on six. On February 2, 2018, she released
Deep End, a collaboration with trance producer
Standerwick on Armin van Buuren's imprint Armind Records. It was Tune of the Week on
A State of Trance two weeks in a row. Haliene released her first solo record
Dream in Color, on
Monstercat, April 3, 2018. This release marked Haliene as the first female artist to release a song on the label without it being a collaboration with another artist. Her song "In My Mind", with Illenium and
Excision, reached number 22 on the Hot Dance/Electronic Songs chart, and was a track on Illenium's
Fallen Embers which received a Grammy nomination for
Best Dance/Electronic Album. In 2023, she was selected as the Artist of the Year (Female) at the second edition of the
Electronic Dance Music Awards (EDMA) in Miami. She also won Artist of the Year (Female) at the EDMA in 2024. In June 2023, Haliene announced an open aux competition for aspiring DJs to open for her at the Fonda Theater. She selected
Freya Fox as the winner to open alongside DJs Lione and Kaidro. ==Personal life==