Oliver started her modeling career at the age of 16. She quickly landed a
Vogue cover, a magazine in which she was featured numerous times throughout her professional life. Her first relevant role was in the early years 90's, in the famous mexican "Brandy Presidente" (a liquor from Pedro Domecq distillery) tv commercial, with a high impact phrase : "obviamente Presidente". This commercial was an important impulse in her modeling career. Early in her career, Oliver moved to
Miami where she modeled for magazines such as
Elle and
Top Model. While in Miami, she was cast for a role in the
Fox series
Fortune Hunter. She also hosted the
Telemundo show
Basta for two years. After several years in the
United States, Montserrat returned to
Mexico City where she appeared in
Ramona, the first of many telenovelas for the Spanish-language broadcast network
Televisa, which included "Sin Pecado Concebido", "Mujeres" and "La Madrastra". After
Ramona, Oliver starred in her own
Televisa show, "Las Hijas de la Madre Tierra", which she co-produced and co-hosted with close friend
Yolanda Andrade. The show aired for eight years in
Mexico and in various countries around the world. During this time, Montserrat also served as national spokesperson and brand image for selected global companies, like
Coca-Cola,
L’Oréal Paris, and
Lancôme among others. She is currently the brand image for
Scotia Bank,
Trident, and Clear shampoo. Montserrat continued her relationship with Televisa as the network's live correspondent in historical television specials around the world like the
Athens,
Beijing and
London Olympics in 2004, 2008 and 2012, as well as the
Japan,
South Africa and
Brazil World Cups in 2002, 2010 and 2014 respectively. She has also been called upon to host live award shows as was the case in 1998 when she hosted the prestigious music festival
Viña del Mar in
Chile and in 2002 when she co-hosted the
MTV Video Music Awards Latinoamérica in Miami. Montserrat co-hosts with Yolanda Andrade the Televisa interview and musical late-night show
Mojoe. She is openly lesbian and she is married to Slovak model Yaya Kosikova. ==Business ventures==