Erin O'Brien had a solo singing career at the Steve Allen Show since 1956 until 1958. She was in the films like John Paul Jones and Onionhead. She has given birth to 5 children and three are of her former husband Jimmy Fitzgerald and two are of her current husband Kanaan Awni.

Erin O'Brien was born in the city of Los Angeles and she is the eldest child in her family. Among her brothers, there are Michael, Tessy-Lou, Sheila, Vernon, Timarie, Kathleen, Eileen, Kevin, Mavourneen, Petrice, Tighe, Denis and Sean. She grew up in the city of Long Beach of California and she started to sing in civic clubs and got discovered by the scout of the Los Angeles TV station. She worked on Martinee Show of Al Jarvis for three years. She got married to the fellow singer called Jimmy Fitzgerald in the Paso Robles and she retired from singing. He was 21 years old when she was 17 years old. She had a son called James Patrick and was born in the city of Los Angeles. Another actress under the name of Erin O'Brien-Moore wanted her to change the name.

Her mother was the one who raised her children when she was travelling and she said that missing her children was a drawback when it comes to her business. She got the award of the Most Promising Femme TV personality from Steve Allen‘s TV Show. She got the riding lessons with Warner Brothers and she got a role to star in The Eddie Fisher show. Other guests were George Gobet and Bob Hope.

While working for The Steve Allen Show, she was being given the salary of 500 dollars per week. John Paul Jones borrowed her and paid 25,000 dollars for her services. The company made her yearly salary to increase with 5,000 dollars. She sued for the divorce from Fitzgerald where she gave the reason of cruelty and wanted the support for her sons. She met Kanaan in 1962 and they got married in 1963. Kanan A Awan is a graduate petroleum engineer and they got married when he was 33 and she was 27. Her exact net worth is not recorded now.