Royce and Kay, now dubbed The IIconics, made their main roster debut on the 10 April 2018 episode of "SmackDown Live" attacking SmackDown Women's Champion Charlotte Flair, while she was cutting a promo about her match at WrestleMania 34. Two weeks later, The IIconics racked up their first victory, as part of the main roster, over Asuka and Becky Lynch. Throughout the next few months, Royce competed in various singles and tag team matches but ended up on the losing end on them all. In August, The IIconics started their first feud on the main roster, with Naomi, and the two were able to defeat her in singles matches. Eventually, Naomi teamed up with Asuka but lost to The IIconics at the Super Show-Down on 6 October, held in the latter's homeland of Australia. Three weeks later, both Royce and Kay took part in WWE's first all-women's pay-per-view, Evolution; they were the first two eliminated from a battle royal for a future women's championship match.