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Logan Castleton is a Bay Area-based audio engineer, music producer, and gospel rap artist known worldwide as The Rapping Missionary. Born with Hypoplastic Left Heart Syndrome (HLHS) — a condition in which the left side of the heart is severely underdeveloped — Logan was not expected to survive birth. He has since undergone 14 surgeries, survived a stroke, and continues to create and produce music while awaiting a heart transplant.
Despite his lifelong medical journey, Logan has built a professional career in music production and audio engineering, trained under Grammy-nominated engineers, performed at venues including Lincoln Center, the Dolby Theater, and the Roundhouse in London, and produced content that has reached over 30 million views across 120+ countries.
30M+
TOTAL VIEWS
120+
COUNTRIES
14
SURGERIES
25K
LIVE ATTENDEES
THE STORY
What is the Rapping Missionary?
In July 2023, Logan began serving as a full-time proselyting missionary for The Church of Jesus Christ of Latter-day Saints in Chicago, Illinois. Within days, his HLHS caused his heart to become unstable again — he was sent home and placed on supplemental oxygen.
Rather than return home permanently, Logan transitioned to a service mission in the California Oakland/San Francisco Mission. Unable to do traditional missionary work on difficult health days, he prayed for direction and felt impressed to use his musical abilities differently. With approval from his parents and mission president, the Rapping Missionary was born.
Wearing his missionary suit, tie, name tag, and oxygen tank, Logan began writing and releasing gospel-centered rap songs and posting clips to social media. The videos — featuring songs about faith, the Book of Mormon, and Christ's love — spread rapidly across TikTok, Instagram, and YouTube, reaching millions of viewers in dozens of countries. His mission concluded in July 2025.
POST-MISSION
Where is the Rapping Missionary now?
Logan's two-year mission ended in July 2025. He has shared that the Rapping Missionary chapter is complete, though all music and videos remain available on streaming platforms and social media. Logan is now based in the Bay Area, California, as a contractor with Castleton Records — working as an audio engineer, music producer, mixer, and mastering engineer for artists.
He continues to await a heart transplant. Despite ongoing hospital visits for procedures, blood draws, and CT scans, Logan remains active in his music career, carrying his faith and story into everything he creates.
CASTLETON RECORDS
Audio engineering services & music production
Castleton Records offers professional audio engineering and music production services. Logan serves as a contracted engineer across every stage of the production process — recording, mixing, mastering, and full music production. He has worked as a studio intern alongside professional musicians in Oakland, CA, and trained under Grammy-nominated audio engineers.
Artists and organizations looking to collaborate can reach Castleton Records through this website. Logan has experience working across gospel, rap, contemporary Christian music, and multi-genre production.
Studio Intern — Oakland, CA
Trained alongside professional musicians and engineers in the Bay Area music industry.
Grammy-Nominated Mentors
Mentored and trained under Grammy-nominated audio engineers.
Castleton Records — Contracted Engineer
Artist, producer, mixer, mastering engineer, and studio operator.
LIVE PERFORMANCE
30+ performances for causes that matter
Logan has performed at over 30 live events for organizations dedicated to children and families facing serious illness — including the American Heart Association, Make-A-Wish Foundation, and the Serious Fun Children's Network. He has appeared at major venues across the United States and internationally.
🎭 Lincoln Center — New York City, NY
🎬 Dolby Theater — Los Angeles, CA
🎸 Roundhouse — London, UK
🫀 American Heart Association
⭐ Make-A-Wish Foundation
🎪 Serious Fun Children's Network
EDUCATION & TRAINING
Classical roots, professional training
Logan is an accomplished classical pianist who received his foundational arts education at the Denver School of the Arts. He was accepted into BYU's Commercial Music Program — one of the most competitive music programs in the region — and trained under Grammy-nominated audio engineers before beginning his professional career.
FREQUENTLY ASKED QUESTIONS
Common questions about Logan Castleton
Is Logan Castleton still LDS?
Yes. Logan is a member of The Church of Jesus Christ of Latter-day Saints and served as a missionary from July 2023 to July 2025, first in Chicago and then as a service missionary in the California Oakland/San Francisco Mission.
What is HLHS and how does it affect Logan?
Hypoplastic Left Heart Syndrome (HLHS) is a rare congenital heart defect where the left side of the heart is severely underdeveloped. Logan was not expected to survive birth. He has undergone 14 surgeries and survived a stroke, and currently awaits a heart transplant while continuing to work professionally in music.
Where can I listen to the Rapping Missionary's music?
Logan's music is available on Spotify, Apple Music, and other major streaming platforms under "Rapping Missionary." His videos remain on YouTube, TikTok, and Instagram.
Does Castleton Records work with outside artists?
Yes. Castleton Records offers audio engineering and music production services to artists. Contact us through this website to discuss recording, mixing, mastering, or full production projects.
Has Logan Castleton worked with major organizations?
Yes. Logan has performed for the American Heart Association, Make-A-Wish Foundation, and the Serious Fun Children's Network, and has appeared at Lincoln Center (NYC), the Dolby Theater (LA), and the Roundhouse (London).
Why did the Rapping Missionary wear an oxygen tank?
Due to his heart condition (HLHS), Logan required supplemental oxygen during his missionary service. Rather than hide it, he wore his oxygen tank alongside his missionary suit and name tag — it became a signature part of his look and a symbol of his story.
(written by AI)
