Poro is the solo musical venture of Mark Porostosky, a Cleveland-based artist who’s spent over 14 years as a multi-instrumentalist and songwriter with The Lighthouse a nd the Whaler. Known for helping the band "grow from a folk-leaning outfit to a genre-blurring innovator" (Paste Magazine), Mark’s contributions have been a key part of TLATW’s sound, helping the band land 18+ sync placements across major networks like Fox, CBS, ABC, and Disney+.

With Poro, Mark takes that deep well of experience and channels it into a lofi Indie Pop sound, drawing on influences like The Smiths, Sufjan Stevens, Phoenix, and Copeland. The project kicked off with the 2018 EP Treat Yourself, a feel-good collection of songs that Cleveland.com named one of the "15 Best Cleveland Album and EP releases of the year." The track "Embrace" even found its way into the trailer for the 42nd Cleveland International Film Festival, with Poro performing at the festival’s closing ceremony.

Recently, Poro has shifted his focus to remixing, offering a unique way for him to collaborate with other artists and put a unique spin on their songs. This creative approach has allowed him to explore new sounds and reach new audiences while keeping the project’s identity fresh.

Since late 2024, Poro has been releasing singles in anticipation of his upcoming full-length lo-fi indie pop album, where he crafts introspective soundscapes that weave together hazy melodies and heartfelt lyrics, capturing the essence of both nostalgia and new beginnings.