Celebrity Stalking: Nia Long, Lenny Kravitz, Cissy Houston, Alicia Keys, Jordin Sparks & George Clooney

Cissy Houston, ( mother of the late Whitney Houston ) visits ‘The Late Show with David Letterman’ in NYC, to watch Aretha Franklin’s performance.

Lenny Kravitz attends the Saint Laurent fashion show as part of Paris Fashion Week, Womenswear Spring/Summer 2015 collections.

Nia Long seen chatting with a friend while she was out for sushi in Studio City, CA.

Andre 3000 performs with Outkast in Atlanta, rocking a ‘Teachers Deserve More’ ensemble.

What break-up? Jordin Sparks was spotted smiling (rocking a midriff top and grey skirt) while walking in Times Square, despite post-split with Jason Derulo.

A very pregnant Alicia Keys departs ABC studios in NYC. Earlier in the day, the expecting singer visited The View.