Lemma is a relationship between Lachy and Emma. They started dating when they replaced Greg and Jeff as the yellow and purple wiggles in 2013, but didn't officially announce it until March 7, 2015., On May 2, 2015 Lachy read Emma a poem and asked Emma to marry him. The response Emma gave was, "Yes! Of Course!" They then revealed the engagement on May 5, 2015. The wedding was planned in between tours. Lachy revealed he got the engagement ring in New Zealand. They have done lots of things together to make Wiggles fans think that Lachy Gillespie and Emma Watkins are boyfriend and girlfriend, (dancing, playing nursery rhyme couples, going places together, etc.) before they admitted that they were actually in love. They kept their romantic relationship secret possibly because their career is child-related and their relationship is more adult related and because they were mainly focused on the job and were mindful of the people around them. Lachy proposed to Emma during the Rock & Roll Preschool tour. On August 3rd, 2018, Emma and Lachy announced their separation just two years after they married.
In 2020, Lachy is now engaged to Dana Stephensen when it turns out that Emma and Lachy are now currently divorced.