Hong Kong singer G.E.M who turned 30 on Monday (Aug 16) is well-versed in the art of skincare layering. So when she took to Xiaohongshu (Chinese lifestyle platform) to share her beauty hacks, our ears instantly perked up. Who better to break it down than the Mandopop superstar and style icon, right? In a Xiaohongshu post, the “Goodbye” singer shared.