Complex sentence: In February 2015, Lambe released her self-produced debut album, "Hiding Away" to much acclaim in Ireland and on which her single Heaven featured some of the members of ALONE Ireland, a charity with which Lambe is affiliated.
Split into simpler sentences: In February 2015, Lambe released her self-produced debut album, "Hiding Away" in Ireland. The single "Heaven" from this album featured some of the members of ALONE Ireland, a charity with which Lambe is affiliated.