The NYC Heatwave And Lady Gaga's Big Night In Today's Tweet Dreams

Lady Gaga We're finally back from the long holiday weekend, Crushers, and so was Justin Timberlake who tweeted to followers, "Hope y'all had a chill fourth of July's been hot out there." He isn't kidding, especially if you are also baking in the NYC heatwave. Sean "Diddy" Combs alerted via his page, "Its over 100 degrees outside!!!!!!!!!!!!!!!!!!" while Nick Zano found himself suffering in the city, posting, "Breaking News: Hell does exist, it's called the C Train when it's 101 degrees outside." Other celebs got out just in time, like "Jersey Shore" star J-WOWW, who wrote, "Heard NY is on fire... Thankfully I'm in LA today!"

But, the weather wasn't the only thing heating up New Yorkers, as tonight Lady Gaga (pictured) starts the first of her three night stint at Madison Square Garden. Khloe Kardashian couldn't keep her cool about the hot ticket, as she tweeted, "Yay!!!! I am so excited for Lady GaGa's concert tonight!!!!! Woooohooooo." Lady Gaga herself reflected, "Today is what dreams are made of. 3 Sold out nights at MSG in my home town. I used to go watch Madonna, Cher, + the Stones and would cry," and later posted, "I would stare into the brightlights and imagine I could do anything. Be anything. And I would tell myself it would be me up there one day."

Check out the rest of today's hottest celebrity tweets, including Jake T. Austin gearing up for "The Sorcerer's Apprentice" premiere! Follow us @hollywoodcrush to get even more celebrity and pop culture news around the clock!

@whitneyeveport My 4th of July family photo album:

-Whitney Port, Reality Star ("The City")

@ashleymgreene Just got word of the boxoffice numbers for Eclipse! Guys... You're seriously the Most INCREDIBLE fans ever!! Thank you!! Xx

-Ashley Greene, Actress ("Eclipse," "New Moon")

@serenajwilliams I can't believe I made sports Illustrated cover. I'm so honored and happy!!! Wow!!! Wow wow!!!!!!!!XxS

-Serena Williams, Athlete

@ashleytisdale Officially wrapped! Just got done with Sharpays Fabulous Adventure. Now onto cheerleading and pom pom's!

-Ashley Tisdale, Singer, Actress ("High School Musical," "Hellcats")

@adriangrenier Last day of 'school' - Entourage style - lobster for lunch and mushy man-hugs. Goodbye till season 8!

-Adrian Grenier, Actor ("Entourage")

@jaketaustin in NYC for the sorcerers apprentice premiere... Looking forward to a hott night

-Jake T. Austin, Actor ("Wizards of Waverly Place")

@joshgroban It has come to my attention that this is the day that Doc may show up somewhere in his DeLorean. Heads up.

-Josh Groban, Singer

@davidspade saw a woman that looked like snookie at the gym. apparently not the best compliment to be called a snook-alike. o well, live and learn..

-David Spade, Comedian, Actor ("Grown Ups")

@sn00ki @DavidSpade She must be buggin . Just sayeennnn .

-'Snooki', Reality Star ("Jersey Shore")

@jasoncastro I have made a really annoying habit of leavin my phone in the car EVERY NIGHT! Haha

-'Jason Castro, Singer