I was interested in what Jennifer Lopez believes in and who she supports

She is married to Latin singer Marc Anthony.
Her idols are Barbra Streisand and Rita Moreno.
She supports Childrens hospital Los Angeles. She formed The Maribel foundation.

from wikipedia:
Lopez is an avid supporter of Childrens Hospital Los Angeles and was presented with the Children's Humanitarian Award at the hospital's inaugural Noche de Niños gala in September 2004. Lopez continues to attend the annual red carpet event and is a regular visitor to the hospital. The singer participated in the Nautica Malibu Triathlon benefitting the hospital in 2008. In May 2009, Lopez formed The Maribel Foundation, with the goal of supporting Childrens Hospital Los Angeles and improving health care internationally.
Lopez has also been involved in promoting vaccination for whooping cough.[79] Lopez is working with Sounds of Pertussis and March of Dimes to promote awareness about the disease and encourage vaccination of adults to prevent spread of disease to infants.

She is going to release new album this year.