Jazz musician Herbie Hancock, left, and members of the rock band OK Go help President Barack Obama, second from left, celebrate his 50th birthday in August 2011 during a fundraiser at the Aragon Ballroom in Chicago. Obama and friends are hosting three birthday-themed fundraisers Aug. 12 in Chicago. (Scott Strazzante, Chicago Tribune / August 3, 2011)

There's a high price to wish President Barack Obama a belated happy birthday in his Chicago home: $40,000.

Obama, who turns 51 on Aug. 4, will be celebrated with three "birthday" fundraisers in Chicago on Aug. 12, including one in his Kenwood home and two at the homes of friends.

According to invitations to the events, the first party, called President Obama's Birthday Party, will be at 3 p.m. and has the heftiest price tag. But it could include a few partygoers who got in on the cheap, by chance. First lady Michelle Obama invited supporters to enter a contest in which they could donate as little as $3 to try to win an invitation. Two winners were to be chosen, and each may bring a guest, with airfare and hotel costs paid, the Obama campaign said. The contest ended Thursday.

The second fundraiser will be at the home of Obama friends Anita Blanchard and Marty Nesbitt at 4:30 p.m. That's a birthday "photo reception" requiring a $5,000 donation.

Blanchard is an associate professor of obstetrics and gynecology at University of Chicago Medicine. Nesbitt is president and CEO of The Parking Spot, which owns airport parking facilities.

The third fundraiser, a birthday "dessert reception" requiring a $1,000 donation, will be at 7 p.m. at the home of Barbara Bowman, mother of top Obama adviser Valerie Jarrett.

Michelle Obama will not accompany the president Aug. 12, a campaign aide said.

More Chicago fundraisers are slated before the birthday events, with Vice President Joe Biden visiting Monday.

The same day, Mayor Rahm Emanuel and top Obama campaign strategist David Axelrod will appear at a fundraiser put on by The Futuro Fund, the campaign's Hispanic fundraising arm, an invitation says.

The event is at 6 p.m. at the home of Alejandro and Amelia Silva. He is chairman of the board of Evans Food Group Ltd.,, which calls itself the world's largest producer of pork rinds. Admission is $2,500 for guests and $10,000 for hosts.