Marilyn Sellars (born December 31, 1944) is an American country music and gospel singer who had several hits during the mid-1970s on Mega Records, most notably the original version of "One Day at a Time" in 1974.
Many of her family and friends enjoyed her singing and suggested Sellars moved to Nashville, Tennessee in 1973.
Sellars signed with Mega Records in 1973 and success began quite rapidly with a song written by Marijohn Wilkin and Kris Kristofferson called "One Day at a Time".
Sellars had another Top 40 country hit in early 1975 with her cover version of Sammi Smith's "He's Everywhere" and released two more albums that year with Gather Me and The Door I Used To Close.
After that, Mega Records closed its doors and Sellars faded quietly from view and decided to raise her family and moved back to Minnesota.