EMI Music Philippines signed Nikki into a contract for her debut album in April 2005. EMI describe her music in totality with the person she is as gorgeous, graceful and youthful as self-titled and debut album is mixed bag of pure-pop lyricism and throwaway covers. ôSakayan ng Jeepö dubbed to be her debut single. This song was composed by Bodjie Dasig and was first recorded by Lani Misalucha in the 90Æs.

After the albumÆs release in September 2005, a repackaged version was released in Feb 2006 featuring GLOWING INSIDE, the song used in Vaseline shampoo commercial as a tribute to all graduates and their moms behind them. Nikki remains as a young achiever in her craft. July 2006, EMI Philippines and Walt Disney Records introduced her to be one of the Asian artists to sing and to star in the music video of Disney ChannelÆs original movie High School MusicalÆs theme song Breaking Free. Nikki joined Vince Chong of Malaysia and Alicia Pan of Singapore for the free-spirited song Breaking FreeÆs for the Asian version. High School Musical OST Asian Version which have sold more than 20,000 units in the Philippines. Soon after, Nikki also graced High School Musical 2 OST with the song GOTTA GO MY OWN WAY which also climbed the charts and boosted HSMÆs status to double platinum record. With her indelible hit after the other, big shot TV shows and top-rating soap-operas-- 2008 gave another step for Nikki to prove her claim as one of the top-rated young artists of Philippine entertainment. Another contribution to Disney IntÆl, Nikki Gil also recorded and shot a music video for the pop version of ôItÆs A Small World After All.ö Nikki did the song with three other Asian pop stars from Malaysia, Thailand and Hong Kong. She rendered a Tagalog version of ôItÆs a Small Worldàö and performed it live during the launch of Hong Kong DisneylandÆs new theme park.

With her second studio album entitled HEAR MY HEART was with her first single ôHear My Heart,ö (co-written by her younger sister, Danela Gil) Nikki and also produced the remakes of Million Miles Away and If YouÆre Not The One.

On the other note, Nikki continues to be one of ABS-CBNÆs most promising stars where she is a regular co-host of ASAP and a MYX veejay. Recently she has combined her musical career with acting, with roles in ôOne More Chanceö (2007). In 2009, she appeared for a Star Cinema movie entitled "And I Love You So"; TV series Florinda, Nagsimula Sa Puso, Agimat: Elias Paniki and an up-coming indie film with UnitelÆs The Red Shoes with actor Marvin Agustin slated March 2010