Lou Eula May Caballero Simo (born May 23, 1995) is a Filipina actress. She is known as the first Star Factor grand winner. She also played the role of Holly Posadas in the TV mini-series, Nandito Ako on TV5.
After holding her own while starring opposite the country's superstar Nora Aunor in TV5ís drama series Sa Ngalan ng Ina, Caballero landed a major project wherein she again portrayed the daughter of a veteran actress, ranged against the Diamond star Maricel Soriano. Eula played the daughter of Maricel and Gabby Concepcion in the Metro Manila Film Festival (MMFF) entry Yesterday, Today and Tomorrow.