Rappers Lil Wayne, Drake, Soulja Boy Tell Em and Young Jeezy are officially 'America's Most Wanted.' The four will be heading out on a summer tour, much to the delight of teenage girls every. Although Wayne will be the headlining act, his three openers could easily stand alone, given their cult-like following.

Current Internet sensation rapper/actor Drake is excited about going on such a huge tour before even dropping an album. "I think it will be an exciting night for each city that we go to. You got two young guys [and] two guys that have been killing the game for a minute, so I think it will be a dope tour," Drake said.

Beleaguered songstress Lauryn Hill has canceled all upcoming European tour dates, due to undisclosed health reasons, according to reports.

Hill was scheduled to headline the Stockholm Jazz Festivalon July 18th, and perform shows in the Netherlands, Germany, Austria, France, Switzerland, Poland, Greece.

A spokesperson for the Stockholm Jazz Festival, Lisa Tolonen, made a statement saying that Hill's agent informed the festival on Tuesday, June 9th, that the singer would be unable to perform due to health reasons, but did not give further information regarding her condition.

It's not unusual for Jay-Z to pop up at one of the biggest hip-hop events of the year, but fans were shocked to see the iconic MC stroll onstage during Young Jeezy's performance of 'Put On' Sunday night at Hot 97's Summer Jam concert in East Rutherford, NJ. Jay spit his verse as the crowd went wild, making it almost impossible to hear the MC proclaim:

"I put Marcy on the map, I put Brooklyn on my back. I put Fab back on the charts, I put Biggie in my raps/ I put Nas with Def Jam, I let Diddy do my tracks./ I put on for my city, that's a mother----ing fact/ ... I put Prodigy in his place on that Summer Jam screen."

The rapper also performed his new joint 'D.O.A.,' which he premiered on the NY radio station Friday, for the excited crowd.

If we had to give the 2nd Annual Roots picnic a theme, we'd simply say: Music unites the masses. Unarguably the best hip-hop band ever, The Roots, who scored a gig jamming for Jimmy Fallon Monday-Friday, packed approximately 7,000 music lovers and an awesome assortment of talent into the Festival Pier at Penn's Landing on Saturday.

The legendary Roots crew kicked off the all-day affair with an afternoon performance before passing the microphone off to an array of acts on the main stage and in the tent. Electropop singer/rapper Santigold; garage rockers the Black Keys; Brooklyn, NY, indie band TV on the Radio; Cleveland-bred rapper Kid Cudi, New York-based Afrobeat band Antibalas and Morrisville, PA suburban 'I Love College' and marijuana rapper Asher Roth were all part of the multi-genre fun, but the biggest moment belonged to Public Enemy (no description needed).

One of the hottest tickets for hip-hop fans will take place in New York City this summer. Veteran rappers MC Lyte, Raekwon and Naughty by Nature, are just a few of the artists kicking off the second installment of the Hip-Hop Legends Concert on June 17.

Time Square's B.B. Kings Club and Grill will host the event, which will feature the DJing skills of both Funkmaster Flex and Chuck Chillout.

Redman and Method Man launched the first concert in the series on May 24. Red and Meth, who are out promoting their latest album, 'Blackout! 2,' treated fans to a performance at the famed S.O.B.'s venue in Manhattan alongside Brand Nubian, EPMD, and N.O.R.E. This time around, rappers Lord Finesse, Das EFX, and Smif-N- Wessun, will also hit the stage.

Pre-sale tickets are $30 and can be purchased at the venue's web site. The concert will start at 11:00 p.m. and all attendees must be 21 or older.

Video footage has just surfaced of Miami rapper Pitbull knocking out a fan at a recent concert in Colorado. The video, which was posted on YouTube, clearly shows the fan climbing onstage and throwing money in Pitbull's face, during the song 'Bojangles,' then getting knocked back into the crowd by a punch to the head.

"They don't show the whole clip of what happened," Pitbull told MTV. "Before the song 'Bojangles,' I play a whole set and I only get three breaks. I was going into 'Bojangles' and this mutha----a had already made it rain, like, three times. He threw a gang of money in the air and I was scooting the money, giving it to the crowd. I didn't touch the money, but I was scooting it, giving it to the crowd."

The rapper contends that he gave the man a warning to stop "making it rain," then helped the man onstage to make a point.

Everyone's favorite rapper of the moment, Aubrey Graham aka Drake, drew an intense crowd of girls, as expected, along with a curious mix of industry elite last night when he took over New York City's popular S.O.B.s as part of Hot 97's "Who's Next" concert series.

Kanye West, Talib Kweli, MC Lyte, Warner Music Group head honcho Lyor Cohen, BET's Stephen Hill, DJ Green Lantern, Ryan Leslie, The Alchemist, a host of bloggers and random record label folk were all in attendance at the event, which was hosted by radio personality Peter Rosenberg.

The Toronto-based rapper did not disappoint as he blessed fans with tracks off his most recent mixtape, 'So Far Gone.' Drake ran through 'Successful,' 'November 18th,' 'Sooner Than Later,' and 'Say What's Real' as the crowd uttered every word off the unsigned(?) rapper's underground releases. Houston's finest Bun B was also in attendance and joined him onstage for 'Uptown.'