Phineas and Ferb Summer Special Tonight at 8P on Disney Channel

In August, "Phineas and Ferb" the hit animated comedy, increasingly renowned for its smart humor and noteworthy guest stars, will present two new episodes featuring the legendary recording artist Chaka Khan, multi-Platinum selling singer Clay Aiken ("American Idol"). "Phineas and Ferb: Summer Belongs to You" airs Friday, August 6 on Disney Channel. 

As the story goes, it's the summer solstice and, because it's the longest day of the year, stepbrothers Phineas and Ferb decide to travel around the world in one day.  But not everyone believes they can actually achieve what they've set out to do, leading them to get some encouraging words, in the form of a duet, from Clay Aiken and Chaka Khan.  Meanwhile, Dr. Doofenshmirtz takes a father-daughter trip to Tokyo with Vanessa.