She was born in Manila, Philippines to a German American father George Jacob and a former TV host Rosemarie (née Sotto), and grew up in the United States in her elementary years.
She joined Southeast Asian Games in Singapore in 1983 where she won a gold medal.
expired, Jacob hosted its rival, Magandang Tanghali Bayan, in ABS-CBN (Eat Bulaga is already airing in GMA Network).
She stopped hosting in showbiz in 2001 when she became pregnant with her first child with her husband, Francisco "Paco" Sandejas.
After four years, GMA Network gave her her own TV show, Mobile Kusina.