After deciding to move to Melbourne, Victoria, she headed east on a road trip with a carload of friends.

As they were approaching Melbourne, she discovered that Triple J, a national radio station, was planning to play her song that evening.

[5] In July 2014, Mac announced her first national headline tour to promote her debut extended play, MegMac, which was issued on 12 September that year on littleBIGMAN Records.

Mac's debut album Low Blows was released on 14 July 2017,[15] and entered the ARIA Chart at No.2 In October 2018, Mac released the single "Give Me My Name Back" which she told Billboard "is a song for those who have suffered emotional and physical abuse; it's for the women who are standing up and speaking out, those discriminated against in the LGBTQI community, the indigenous people of Australia and the children abused by the church.

For everyone who has lost an important part of themselves and needs to reclaim their identity, dignity, and self-worth to move forward with their lives.

[17] In 2018, Mac collaborated with Dan Sultan on Killer Under a Blood Moon, produced and recorded by Jan Skubiszewski.

[21] In July 2022, Mac announced her third studio album Matter of Time, which was released on 16 September 2022.

[22] The album was proceeded by the singles "Is It Worth Being Sad", "On Your Mind", "Only Love", "Letter"[23] and "Understand".

Others performing that night are Crowded House and local hip hop artist J-MILLA.