Justin Timberlake unveiled new material from his upcoming album "FutureSex/LoveSounds" on Friday at Los Angeles' House of Blues with a little help from some superstar artists. The trek continues tonig

Justin Timberlake unveiled new material from his upcoming album "FutureSex/LoveSounds" on Friday at Los Angeles' House of Blues with a little help from some superstar artists. The trek continues tonight (Aug. 14) in San Diego.

Black Eyed Peas principal will.i.am took the stage for "Damn Girl," while Three 6 Mafia appeared on an unidentified new song that found Timberlake rapping. Producer Timbaland appeared for a short version of Nelly Furtado's "Promiscuous," with Timberlake doing his best Furtado impression, as well as the show-closing "SexyBack."

"Like I Love You" had a short blast of the arrangement for the Emotions' "Best of My Love" wedged into its makeup, only to shift into heavy metal guitar chording, followed by the raucous instrumental riff of Nirvana's "Smells Like Teen Spirit."

Elsewhere, the opening hook from Seals & Crofts' "Summer Breeze" was grafted onto "Take It From Here," a one-verse take on the Eurythmics' "Sweet Dreams" opened "SexyBack" and Coolio's "Gangsta's Paradise" echoed in the hypnotic tension and descending chorus of the new song "What Come Around Goes Around."

As previously reported, "FutureSex/LoveSounds" is due Sept. 12 via Jive.