Early years

Mercado started as a recording artist with Alpha Records in 1999 through the recommendation of her voice coach, Susanna Pichay. Mercado was in Nonoy Tan's singing group, G4. The group recorded two songs but never released an album due to two of the four members dropping out. After G4, Mercado went into commercial modeling, landing a stint with Bambini cologne and a Pond's TV advertisement. She was also part of the Elite Circle of "10 Modeling Search", where she competed with StarStruck co-finalist, Dion Ignacio.

In 2002, Mercado made her debut acting appearance playing a minor role in ABS-CBN's TV series Kay Tagal Kang Hinintay, which was top-billed by Bea Alonzo and John Lloyd Cruz.^[11]

2003–2009: Ultimate Survivor and Multi Media Star

In 2003, Mercado joined the reality show StarStruck. She and Mark Herras won, receiving 1,000,000 pesos and exclusive contracts from the GMA Network. After winning StarStruck, Mercado and Herras were launched as a love team in Forever in My Heart, and months earlier they were in the last batch of the teen series Click.^[12] She later starred in numerous TV series, including Encantadia, I Luv NY, Dangal, Super Twins, Paano Ba Ang Mangarap?, SRO Cinemaserye: Suspetsa, Ikaw Sana, and Gumapang Ka Sa Lusak. She also acted in films such as So Happy Together (2004) and teen-flick Let the Love Begin (2005).

Mercado released her first album Living the Dream, which contained original compositions by Vehnee Saturno, and a carrier single titled "Kahit Sandali". In May 2006, Mercado released her second album Letting Go, which included the single "Sa Aking Panaginip" by Vehnee Saturno. Mercado's first major concert was held at the Music Museum in Greenhills on May 15, 2006. In May 2009, she held a sold-out birthday concert titled "I Am Woman" at the Music Museum.^[13][14] In January 2010, under Viva Records, she released her third album, Love Is... Jennylyn Mercado.

2010–2015: MMFF Best Actress

Mercado starred in Filipino period piece Rosario (2010).^[15] Her acting career was handled by Becky Aguila and Viva Entertainment, where she joined her Starstruck co-alumnus Cristine Reyes. Mercado's singing career was managed by Viva Records.^[16] In 2011, her contract with Viva ended and was not renewed, though she joined Cristine Reyes. In 2013, Mercado signed with Regal Entertainment. She also signed with PolyEast Records, hoping to her reinvent herself as singer.

Mercado branched out into television hosting, hosting reality series Protégé: The Battle for the Big Break^[17] with co-hosts Ogie Alcasid and Dingdong Dantes. She was also in the GMA-7 Sunday talk show, Showbiz Central.^[18][19][20]

In 2013, Mercado acted in the romance The Bride and the Lover (2013).^[21] Her contract with Polyeast Records ended that year. In 2014, she played the role of a woman with a split personality through Rhodora X. According to Mercado, this was the most challenging role she has ever played. In late 2014, she released her fifth album through GMA Records.^[22][23]

At the end of 2014, Mercado agreed to participate in the 2014 Metro Manila Film Festival (MMFF). Her entry, English Only, Please (2014), was originally offered to singer-actress Angeline Quinto and was chosen as one of the eight official movies for the film festival.^[24] It became a success despite having fewer promotions than the other movies included. Critics deemed it a "sleeper hit". In the film, Mercado played the role of Tere Madlansacay, a Filipino tutor. The film's success established her as a movie star.^[25][26][27] In early 2015, Mercado received the MMFF Best Actress award for the recently concluded film festival.^[28][29]

2016–present: Rom-Com Queen and Kapuso Ultimate Star

In 2015, Mercado was first in the FHM "Philippines' 100 Sexiest Women" list after Marian Rivera vacated the title.^[30] Before Mercado traveled to New York for the film PreNup with actor Sam Milby, she was surprised and given a plaque by publisher Aeus Reyes, Allan Altera, and GMA News reporter Nelson Canlas. On July 11, Mercado participated in the two-part FHM 100 Sexiest party at the SMX Convention Center in the SM Mall of Asia.^[31]

Mercado played the lead role of Melanie "Mel" Fernandez-Dela Paz in the GMA series My Faithful Husband, which aired on August 10, 2015. Despite its success, the series was not extended due to scheduling conflicts with Mercado, who at the time was acting in two films, The Prenup and WalangForever. The series earned the lead actors multiple acting awards and nominations.^[32][33] After the commercial success of WalangForever, Mercado earned her second consecutive MMFF Best Actress award in 2015.^[34][35][36]

Through social media, Mercado announced her upcoming project, confirming that she was acting in a new film with actor John Lloyd Cruz. The film, titled Just the 3 of Us, was produced by Star Cinema.^[37][38] It earned 16 million pesos in its opening day, which was the highest opening day gross of any of Mercado's movies and set a record for the highest opening day gross for a Philippine film. It went on to be one of the highest-grossing Philippine films of 2016.^[39][40]

After months of negotiations, Mercado and the GMA Network renewed their contract on July 4, 2016.^[41][42] As part of the contract, Mercado hosted GMA's new comedy-singing show Superstar Duets.^[43][44] She was later chosen to play the role of Steffi for the Philippine remake of the South Korean series My Love from the Star.^[45][46]

In October 2018, Mercado became the first Filipina brand ambassador for international makeup brand Max Factor.^[47]

Athletics

Mercado is also an aspiring triathlete. In her free time, she takes jujitsu and Muay Thai lessons. "They built up my muscles. I looked heavy onscreen," Mercado recounted. "I realized that I needed cardio exercises to slim down." She discovered running and biking, which soon led her to join duathlon competitions in Alabang and Laguna. She is also a diver and wishes to inspire people to be environment friendly.^[17]

Mercado is a practitioner of Tabimina Balintawak, a close-range variant of Balintawak Arnis created Grandmaster Bobby Tabimina, who in turn developed its principles after studying the Balintawak system developed by Grandmaster Venancio Bacon in the 1950s.^[52]

Drama television series

Drama anthology shows

Variety/Talk Shows

Film

Studio albums

• PARI: Gold (10,000+)

Compilation album

Extended plays

Singles

Performance awards

Music awards

Box-office awards

Special awards and recognitions

Entertainment awards

FHM rankings