A source recently told PEOPLE that Wilde and the musician "seem very serious" and "spend all their time together"
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Olivia Wilde while running errands in LA after news she and Harry Styles are shacking up
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Harry Styles and Olivia Wilde Spotted Out in London
Olivia Wilde moves her belongings into Harry Styles' LA home
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Olivia Wilde, 36, and Harry Styles, 27, will head to England together with her children 'soon
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Inside Olivia Wilde and Harry Styles' jaw-dropping $2.4m LA home - see photos