Ariana Grande and Lady Gaga gave fans what they wanted in New York City this week.
Grande hit the stage at Amazon Music's Unboxing Prime Day concert on Wednesday night for some of her biggest super fans -- and hung out with Alessia Cara and Ashley Tisdale backstage! -- while Lady Gaga continued her streak of rocking head-turning styles while recording highly-anticipated new music in NYC.
Also this week, Drake, Justin Timberlake, Jessica Biel and Pippa Middleton all hit the All-England Club for Wimbledon, where they watched the likes of Serena Williams and Roger Federer play on Centre Court.
More of our favorite celebrity sightings this week were Jonah Hill, Sarah Hyland, Bethenny Frankel and Gigi Hadid.
See the best celebrity sightings of the week below:
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