What American actress and singer was both a teen idol on the Disney Channel comedy series "Lizzie McGuire," and recorded the song "Someone's Watching Over Me" in 2004?
Someone's Watching Over Me: "Someone's Watching Over Me" is a song recorded by American singer Hilary Duff for her self-titled third studio album (2004). Hilary Duff:  Duff began her acting career at a young age, and quickly became labeled a teen idol as the title character of the Disney Channel comedy series "Lizzie McGuire" (2001–2004).
Hilary Duff