Spike Lee

It's been a busy — and star-studded — few days in NYC for Jake Gyllenhaal! He kicked things off last week at the NY Knicks game with Ben Stiller, Christine Taylor, and Spike Lee, and continued the famous fun with a weekend meeting alongside Jude Law. The celebrity encounters kept coming on Sunday when Jake mingled with A-listers including Isla Fisher and Sarah Jessica Parker at Jerry Seinfeld's 59th birthday bash. In the middle of it all, Jake managed to make his regular spin class at Soul Cycle in Union Square, where he's been known to pack the house with female fans despite his new relationship with Emily DiDonato. Clearly Jake's had a fun few days as NYC's most popular — click through to see all the stars that made his hang list!

Katie Holmes got back into the swing of things when she popped up on a film set in NYC yesterday. She is filming Mania Days, a new movie produced by Spike Lee and directed by newcomer Paul Dalio. Spike joined Katie on set, where she is reportedly portraying a manic-depressive poet who falls in love with a rapper played by Luke Kirby. Katie found herself back in the news earlier this week after reports surfaced that her ex-husband, Tom Cruise, had opened up about their divorce during an interview on a German TV show. According to the rumors that originated from a German magazine, Tom said he "didn't expect" his divorce from Katie and said that life was "tragicomic." However, his rep came out yesterday to announce that Tom never spoke about his relationship with Katie and that the quotes were completely fabricated.

Katie Holmes donned a sheer black Dolce & Gabbana number to attend The New York Observer's 25th anniversary party at the Four Seasons in NYC last night. She mingled with other notable guests including Spike Lee, who was named one of the 100 most influential New Yorkers by the publication, at the celebratory bash.

Katie has had downtime since wrapping her Broadway show Dead Accounts in January, and she's been spending much of it with her daughter, Suri Cruise. Last weekend, Katie joined Suri and her little companion for a playdate in the Big Apple. Suri recently returned to NYC following a trip to London to visit with dad Tom Cruise, who is on location filming All You Need Is Kill.

Over the past four years, bighearted beauty brand Kiehl's has been partnering with various charitable organizations in honor of Earth Month. And for 2012, the company is linking up with Recycle Across America (RAA), a nonprofit that works to make recycling easier for the masses. In fact, 100 percent of the profits (up to $100,000) from the sale of its limited-edition Rare Earth Deep Pore Cleansing Masques ($23) will go to RAA so that select schools throughout the US can strengthen their recycling programs.

Better yet, four stars — Florence Welch, Rosario Dawson, Mark Ruffalo, and Spike Lee — have designed earth-inspired packaging for these masks, made with fair-traded Amazonian white clay. Like what you hear? You'll like these celebrities' do-good artwork, too. See it in detail now.

Jay-Z hit the red carpet at the reopening of his 40/40 Club in NYC yesterday. He was all smiles for the event, which was his first since welcoming Blue Ivy Carter earlier this month. Jay-Z wrote a song for his daughter and released it just days after her birth, and new mom Beyoncé shared her excitement in a statement posted to her website saying, "we are in heaven." She didn't step out to support Jay-Z at last night's bash, but there were plenty of other famous faces, including Ashanti, Spike Lee, and even Warren Buffett, on hand to congratulate the new dad.

Alicia Keys and Swizz Beatz made yesterday's Knicks vs. Heat game at NYC's Madison Square Garden their own personal date night with lots of kisses and whispers in their court-side seats. The happy parents of 3-month-old Egypt were able to celebrate the home team's win against LeBron James's squad with other fans like Spike Lee, Kanye West, Sam Worthington, and David Duchovny. Alicia and Swizz had an additional reason to party earlier this week, when she turned 30 on Tuesday — she's among the many celebs who are marking that milestone in 2011! She was grateful for all the love she received from fans, and took to Twitter to write, "Thank you so much for all of your birthday wishes! I'm so grateful for your love and another year ahead! Blessings and love to my family!" Her evening of basketball with husband Swizz was their latest fun one out on the town, after they toasted his new job at NYU with a party late last year.