Evangelista was first discovered by a commercial agent while at a mall with her sister. She signed up with Star Magic (formerly known as Talent Center) and was paired with John Prats on the show G-Mik. Her team-up with John Prats gained tremendous popularity, and they starred in several movies together— Trip, Ang Tanging Ina and My First Romance. They also starred on another teen-oriented show, Berks.
Evangelista was paired with Geoff Eigenmann on the primetime soap opera Hiram which also starred Kris Aquino, Dina Bonnevie, John Estrada and Anne Curtis. She earned her a Star Awards Best Actress nomination on this series.
She later starred on the fantasy-action TV show Panday.
Evangelista also won the best new female personality (Best New Movie Actress and Best New TV Actress) awards from Star Awards for Movies and Star Awards for TV. She also won Texter's and Listener's Choice at the Himig Handog Awards for her single "Love Has Come My Way". Heart also released the single "Tell Me" in Australia. It peaked at number 18 on the charts.
Evangelista worked on and off for three years (2005-2008) and focused mainly on hosting gigs, starring on a few Maalaala Mo Kaya and Your Song episodes, and giving time to her foundation Heart Can. In early 2007, she renewed her ties with her mother station ABS-CBN and was under a per project basis. She finished a sineserye (TV series based on a film) for the station, the remake of the movie Hiram na Mukha, and appeared briefly on Pangarap Na Bituin. She also topbilled the reformatted version of Your Song under the title "Muntik Na Kitang Minahal".
She was also offered to do another album under Star Records and return to ASAP. She was supposed to play again her character in Ang Tanging Ina Ninyong Lahat as one of Ai Ai de las Alas' daughters. But all of these she declined because she chose to transfer to GMA Network due to her father's decision.
She announced her sudden transfer to ABS-CBN's rival network, GMA Network, last April 23, 2008. She signed up a two-year exclusive contract and is now being paired with Richard Gutierrez. Their first teledrama together on GMA's upcoming drama series Codename: Asero.
Evangelista played the title role in "Ay Ayeng," a film on the indigenous Ifugao life in Mountain Province, which premiered in Hawaii, on July 14, 2008. The movie was adapted from "Maestra Ester," a novel by Abdon Noviza and Lica Lazaro.
Heart is consider to lead the role of Jessie Han in the Philippines version of Full House which is originated by Korean drama.
Since 2006, Evangelista has been very vocal on her conversion from Roman Catholicism to Evangelical Christianity. She now attends New Life Christian Fellowship after initially attending at Victory Christian Fellowship. She has always stated that her conversion is the reason she moved from Star Magic (backed by ABS-CBN) to the small and independent religious/secular Genesis.
Since September 2006, she has started taking on a humanitarian role starting with the creation of Heart Can, a foundation that aims to help children with respiratory diseases. Heart Can has been taking her through a series of mall shows. So far, it has already distributed many cans for donations, raising money for the young children benefiting from the charity.
Even though her transfer from Star Magic to Genesis has caused her popularity to decline, Heart says she has no regrets because she needed the spiritual counsel that Genesis could provide her. She has also stated that she is very happy with her life, "not just working but having...living a life."
Suspected to have caused the break-up of Jericho Rosales and Evangelista, Carmen Soo (Soo Wai Ming), declared for the nth time on September 12, 2008, that she's innocent: "I'm not guilty. I learned about the break-up more than a month after it happened. If the rumor was true, we would probably be together by now. Jericho is a good friend and a good actor, but not a good tour guide.
|2009||Coffee Prince||GMA Network|
|2008||Luna Mystica||GMA Network|
|2008||Dear Friend||Ana||GMA Network|
|2008||Codename: Asero||Emily||GMA Network|
|2008||SOP Rules||Host/Herself||GMA Network|
|2008||The Singing Bee||Guest Player/Herself||ABS-CBN|
|2008||Your Song's Four-Part Miniseries: Muntik Na Kitang Minahal||Arah||ABS-CBN|
|2007||Your Song: Sana Ngayong Pasko||Melanie||ABS-CBN|
|2007||Pangarap na Bituin||Cassandra Salcedo/Cassie||ABS-CBN|
|2007||Sineserye Presents: Hiram na Mukha||Carissa / Alicia||ABS-CBN|
|2007||Maalaala Mo Kaya: Singsing||Kaye Chua||ABS-CBN|
|2007||Your Song: With You||Aschelle||ABS-CBN|
|2006||Your Song: Ngayong Gabi||Missy||ABS-CBN|
|2006||Philippine Idol||Herself (Host)||ABC|
|2006||Maalaala Mo Kaya: Lampara||Maricel||ABS-CBN|
|2006||Close Up To Fame||Herself (Host)||ABS-CBN|
|2006||Your Song: Wish||Ria||ABS-CBN|
|2005||Maalaala Mo Kaya: Painting||Emily Roxas||ABS-CBN|
|2005||Panday||Eden / Camia||ABS-CBN|
|2004||ASAP Fanatic||Herself (Host) / Performer||ABS-CBN|
|2003||Maalaala Mo Kaya: Ferry Boat||Danne||ABS-CBN|
|2003||Ang Tanging Ina||Portia / Por||ABS-CBN|
|2003||Okay Fine Whatever!||Yoko||ABS-CBN|
|2003||Maalaala Mo Kaya: Flat Tire||-||ABS-CBN|
|2003||Wansapanataym: Thumbgelina||Thumbgelina / Liit / Laki||ABS-CBN|
|2002||Maalaala Mo Kaya: Sanggol||-||ABS-CBN|
|2002||MYX||Herself (Video Jockey)||MYX / Studio 23|
|2002||Arriba! Arriba!||Monina Arriba||ABS-CBN|
|2002||ASAP||Herself (Host) / Performer||ABS-CBN|
|2001||Maalaala Mo Kaya: Exchange Gift||Irene Acosta||ABS-CBN|
|2001||Maalaala Mo Kaya: Burda||Jenny Castaneda||ABS-CBN|
|2001||Da Pilya en da Pilot||Heart||ABS-CBN|
|2008||Tingala sa Pugad||Ellyse|
|2004||Bcuz of U||Cara|
|2003||My First Romance||Jackie ("One Love" Episode)|
|2003||Ang Tanging Ina||Portia/Por|
|2002||Jologs||Coffee Shop Passerby (cameo role)|
|2002||Love Has Come My Way||Himig Handog Love Songs|
|2007||Tuwing Nakikita Ka||Loose Fit||Jeans (featuring Jericho Rosales)|
|2003||My First Romance OST|
|2002||Himig Handog Love Songs|
|2005||Star Awards for TV||Best Actress Nomination for HIRAM|
|2004||FAMAS Awards||German Moreno Youth Achievement Award|
|2004||Guillermo Mendoza Memorial Scholarship Foundation||Princess of RP Movies|
|2004||FHM Philippines 100 Sexiest Women||Rank #6|
|2003||Awit Awards||Best Performance by a New Female Artist (Love Has Come My Way)|
|2003||Asia Pacific Excellence & Handog Kay Ina Awards||Youth Achiever for Arts & Entertainment|
|2003||Ivan Entertainment Productions: Circle of 10 Modeling Agency||Celebrity Endorser of the Year|
|2003||Guillermo Mendoza Memorial Scholarship Foundation||Most Popular Love Team of RP Movies (with John Prats)|
|2003||Candy Rap Awards||Best Dressed Personality|
|2003||Album||Platinum Award (Himig Handog Love Songs Album)|
|2002||Himig Handog Lovesongs 2002||Listener's Choice Award (Love Has Come My Way)|
|2002||Himig Handog Lovesongs 2002||Texter's Choice Award (Love Has Come My Way)|
|2001||Star Awards for Movies||Best New Movie Actress Award for TRIP|
|2001||Star Awards for TV||Best New TV Personality Award for G-Mik|