Tending to promotional duties for her latest beauty-related venture, Katy Perry launched her new false lash collection at The Americana at Brand in Glendale, California. The singer, who was recently named as the face of the trendy cosmetic accessories, took to her Twitter to gush about the event, writing, \"Today has been a BEAUTIFUL day! U debuted \"Part Of Me\" at #1 & now I can\'t wait to bat my LASHES & thank u in person @ the Americana at 4pm. The lashes are currently available at ULTA Beauty Stores nationwide and online.