Adam Ostrosser is a guitarist, singer, songwriter, and educator based in Simcoe, Ontario, with more than two decades of experience performing across Ontario and the Greater Toronto Area. His shows are warm, engaging, and unforced—combining expressive guitar work, strong vocals, and a natural ability to read a room. Whether drawing from his own songs, carefully chosen covers, or a blend of both, Adam creates an atmosphere that feels personal, authentic, and memorable.

His career has taken him from intimate restaurants and patios to resorts, festivals, weddings, corporate functions, community celebrations, and private gatherings. That breadth of experience has given him an instinct for what an occasion calls for—when to bring the energy forward, when to leave space, and how to hold an audience without overpowering the room. The result is a polished, dependable musical experience that has earned him repeat bookings throughout the province.

2026 has been an active year for Adam, with club dates, patio shows, festivals, weddings, and special events across southern Ontario. Highlights include a successful wedding in Wasaga Beach with the Kenny Munshaw Band, a warmly received Bar Mitzvah in Toronto, Whisky Fest at Toronto's Distillery District, and a lovely wedding performance as Adam & Annette. Private bookings have remained a particularly rewarding part of his schedule, bringing his music to celebrations of all kinds.

Adam is also the lead guitarist for Hamilton alternative rock artist Sarah Church, whose powerful vocals and emotionally charged songwriting have been attracting audiences across Ontario and beyond. His expressive playing is an integral part of the band's sound, moving between atmospheric textures, melodic passages, and driving rock guitar. Together, they've appeared at Supercrawl, the Dundas Cactus Festival, the Waterford Old Town Hall concert series, The Horseshoe Tavern, Live On Elgin, Casa Del Popolo, Musiikki Café, and venues throughout Ontario and Quebec.

October 24, 2026 marked the release of Sarah Church's second full-length album, Shadows of Time, an eleven-song collection that represents a major milestone for Sarah and the musicians behind her work. Recorded and mixed with Matt Montour at Boxcar Sound Recording in Hamilton and mastered at Toronto's Lacquer Channel, the album builds on the foundation of her 2023 debut, Letting Go, with a broader, more dynamic sound. Moving between intimate, reflective passages and powerful full-band arrangements, the record draws on Sarah's remarkable vocal range and her ability to bring deeply personal songwriting to life.

Adam's guitar is a key part of that musical landscape, adding colour, tension, and energy while leaving room for the songs to breathe. The album includes the previously released singles Drive, Always a Way, and Pause Button, the latter featuring Adam's distinctive guitar work. From delicate accompaniment to more forceful electric passages, his playing helps shape the contrast between the quieter moments and the band's full rock sound. Shadows of Time is now available on major streaming platforms, with physical CDs also available.

The release follows an exceptional run of live appearances for Sarah Church and the band. Their August performance at the Dundas Cactus Festival drew an enthusiastic, emotionally engaged crowd, while September's return to Hamilton's Corktown Tavern with Jasmine T and friends was a resounding success. October brought further attention through interviews, radio airplay, and coverage from CFMU Hamilton, INDI 101.7, and Steel City Music. The band now looks ahead to a Toronto album release performance at Junction Underground on November 24, presented by Notes From The Crowd.

Whether performing solo acoustic, in a duo, or with a full band, Adam brings musical sensitivity, professionalism, and attention to detail to every engagement. He has spent years learning how to make the music fit the moment rather than forcing the moment to fit the music.

Away from the stage, Adam works one-on-one with adult guitar students, helping them build confidence, strengthen their musicianship, and develop a deeper understanding of the instrument.

Now booking throughout Ontario for:

Solo acoustic performances

Duo, trio, and full-band formats

Weddings and private events

Bar and Bat Mitzvahs

Festivals and community events

Resorts and hospitality venues

Corporate functions and special occasions

Music that sets the tone, holds the room, and leaves a lasting impression.