In 2015, Shooglenifty celebrated their 25th Anniversary by playing venues in Sarawak and Stornoway, Lorient and London, Adelaide and Aberdeen, Bangalore and Bristol, and released their seventh studio album The Untied Knot. This featured the first ever collection of Shoogle songs and introduced their newest member, puirt à beul vocalist Kaela Rowan. It received a 5* ‘Top of the World’ rating in Songlines, among many other favourable reviews. Songlines also nominated the band for Best Group in early 2016. The Untied Knot was nominated for Best Album at ‘Na Trads 2015’ – the Scottish Traditional Music Awards.
The band’s gig calendar for 2016 included festivals in The Netherlands, Australia, New Zealand, Austria, Switzerland, England, and, of course, Scotland. They were nominated for Best Scottish Group at the Sunday Herald Culture Awards in July 2016, manfully losing out to Scottish Opera.
In October 2016, the band lost their fiddler Angus R Grant to cancer, and took the end of that year to take a well-earned pause. They were bowled over by the numerous tributes and stories shared about their influential front man, not to mention the outpouring of love for Angus on social media. In January 2017 they channelled that emotion into a tribute gig for Angus at Celtic Connections featuring no less than 62 musicians who were all touched by his music.