Investing Black Records Inc./ Black Ops Production artist Sof has a new single called Let Me In featuring Marv. Sophia Rummels, professionally known as "Sof", is an R&B artist from the Metro Detroit area. Sof started out playing the piano at the age of 8, eventually branching off into singing and making beats later on. Continuing her aspirations in music, she began performing and globally releasing new songs. Turning a passion into a career, she is willing to make an impact and bring new sound to the industry. Sof and Marv released the song, "Let Me In", which is a song inspired by envious love between the two. The song represents the need of affection from a specific person. The single was released through Black Ops Production and is available on all streaming platforms globally.