Love Marie Payawal Ongpauco was first discovered by a commercial agent while at a mall with her sister. She signed up with the Star Magic agency, formerly known as Talent Center, and was part of Star Circle Batch 9. She later changed her name professionally.
She is the daughter of Reynaldo Evangelista Ongpauco, who belongs to a Chinese-Filipino clan that owns and manages Barrio Fiesta Group of restaurants, and Maria Cecilia del Gallego Payawal, whose family owns a sugarcane plantation in Camarines Sur and is the granddaughter of a Spanish governor in the Bicol region. Heart is the youngest in her family, with one brother and four sisters. She grew up and studied in the U.S. then her family moved back to the Philippines in her early teens. She is married to Senator Francis "Chiz" Escudero. On February 15, 2015, the couple wed in a lavish ceremony at the Balesin Island Club in the Philippines.
From 2000 to early 2004, She was paired with John Prats on the show G-mik, Trip, Ang Tanging Ina, My First Romance and Berks. During the success of their loveteam, they won as the (Most Popular Loveteams of RP movies) of 2003, from 33rd Guillermo Mendoza Memorial Scholarship Foundation. 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"... She released the single "Tell Me" in Australia where it peaked at number 18 on the charts.
In 2004, after four years, Prats and Evangelista ended up their loveteam because of their rumored (Puppy Love) break-up and then she became paired with Geoff Eigenmann in the movie Bcuz of U, and also both of them appeared on the TV series Hiram, with co-stars Kris Aquino, Dina Bonnevie and Anne Curtis for which she earned a Star Awards Best Actress nomination for this series.
In early 2007, she renewed her ties with ABS-CBN and was under a per project basis with her manager Angeli Pangilinan Valenciano. She finished a sineserye for the station, the remake of the movie Hiram na Mukha, and appeared briefly on Pangarap na Bituin. She also starred in the reformatted version of Your Song under the title "Muntik Na Kitang Minahal".
In early 2008, She signed a GMA Artist Center exclusive contract under GMA Network and she started her first show Codename: Asero as a leading lady of Richard Gutierrez .
She played a role of twins on fantaserye "Luna Mystika". Evangelista also appeared on her first afternoon TV soap entitled Sine Novela: Ngayon At Kailanman which aired on its final episode in September 2009. In late 2009 - early 2010, she starred in a primetime Koreanovela TV series, Full House. Evangelista hosts the musical variety show on GMA, Party Pilipinas.
She appeared in the Christmas Reality Show, Puso ng Pasko: Artista Challenge on GMA Network, and she plays a dwarf on Dwarfina. On late 2011, she signed an exclusive contract under Viva Entertainment.
In 2012, she starred alongside actresses Alessandra De Rossi and Lovi Poe in the TV Series "Legacy" which became a highly acclaimed television series throughout its run. She also was included in the afternoon drama "Forever" opposite co star Geoff Eigennmann She then started her next project on Luna Blanca book 3 onwards til its finale the show was a tie in of her last soap Luna Mystica in 2008 of the same genre and in 2013, she was reunited with De Rossi in the Afternoon soap Magkano Ba Ang Pag Ibig? under the direction of Maryo J Delos Reyes. In 2015 she and "Legacy" co star Lovi Poe were reunited in the soap "Beautiful Strangers" a melodrama. This is Evangelistas second time working with veteran actress Dina Bonnevie in a series with a huge ensemble cast. In 2016, she was reunited with Dwarfina Co Star Dennis Trillo in the Primetime Rom Com Juan Happy Love Story.
Her foundation Heart Can aims to help children with respiratory diseases. She is also a Thalassemia advocate, and a spokesperson for PAWS or (Philippine Animal Welfare Society).