Current Projects
Martin Hayes and the Common Ground Ensemble
This St Patrick's Day 2026, legendary fiddler Martin Hayes leads a concert celebration, featuring exciting special guests, traditional sean-nós singing and dancing, and modern takes on Irish traditions at Carnegie Hall.
Current Projects - Marketing Manager
Shift: The App for the Global Irish
Shift is launching globally on St. Patrick’s Day 2026.
Connecting for the Irish and the Irish-ish everywhere, Shift is the ultimate interactive directory for Irish events, pubs, artists, and organisations, bringing our global community together both online and in real life. Sign up for the Beta to be the first to explore the early release this November.
Current Projects - Founder
Signature Socials
Founded by Vivienne Sayers O’Callaghan, Signature Socials LLC was born from the momentum of her own digital success. Signature is a creative agency and consultancy that specialises in social media management, short form video content and strategy for leaders seeking to build strategic digital presences and grow their online audiences.
Current Projects - Founder
Irish Classes with Vivienne
Learn Irish with Vivienne and start bringing Gaeilge into your everyday life! Lessons are practical, upbeat, and focussed on confident practical conversation that you can apply everyday settings.
Absolute beginners and rusty returners are equally welcome. One-to-one, groups, or corporate workshops available, virtually or in-person!
Current Projects - Marketing Executive
MCC Marketing Group
MCC Marketing Group is a New York based live entertainment marketing agency that drives ticket sales and audience growth for live events across the United States.
The group partners with touring artists, stadiums, venues, multi-day festivals, and exhibitions spanning music, film, sports, comedy, and the performing arts.
Current Projects - Volunteer Committee Member
Cliona's Foundation
Cliona’s Foundation is a National charity with their office in Limerick that provides financial assistance directly to parents of children with life-limiting or chronic complex care needs across Ireland to help with the non-medical expenses related to caring for their child.
Past Projects - Founder
Gaeltalk: Irish Lessons at The Dead Rabbit
Sure, you might know Dia Dhuit, Sláinte, and Go Raibh Maith Agat – but have you ever wanted to learn more? The Dead Rabbit partnered with Vivienne Sayers O’Callaghan, also known as Vivienne in NYC, on a fun, engaging, and interactive Back to Scoil Irish lesson.
Past Projects - Liason
Allie Sherlock: US Tour
With over 10 million online followers and more than 1 billion views, Allie Sherlock has become one of Ireland’s most successful young musicians. First rising to fame as a viral busking phenomenon on Dublin’s Grafton Street, she quickly evolved into a global artist performing alongside OneRepublic, Picture This, and Gavin James, with appearances that have captivated audiences across Europe, the U.S., and beyond.
Past Projects
Culture Night with Katie Boyle & Aaron McCann
Culture Night 2025 lit up NYC with Ireland’s top comedic talent. Katie Boyle, the only Irish raised female full time comic in the US, headlined with her fearless wit. Northern star Aaron McCann brought his sharp humour, and @vivienne_in_nyc added her signature spark, blending comedy and culture for an unforgettable night.
Past Projects - Cultural Officer
Irish Network New York City
Founded 1996, the Irish Network NYC (INNYC) harnesses the energy and talent of the Irish Diaspora by providing a forum where young professionals can connect and contribute to New York’s Irish community.
INNYC welcomes Irish and Irish Americans of all professional backgrounds, and each year we hold a diverse array of events that provide valuable networking and growth opportunities to all of our members.
