The singer lights up with a smile while out on the town with friends in N.Y.C. Plus: Britney Spears, Eva Longoria, Miley Cyrus and more

TRAINING DAY

After officially changing her name, Miley Cyrus spent some quality time with her family – and a dolphin! – on Wednesday when she, mom Tish and sis Noah signed up for the Dolphin Trainer for a Day Program at the Mirage Hotel's Siegfried and Roy Secret Garden and Dolphin Habitat in Las Vegas.