For the first time in 16 years, Smashing Pumpkins reunited with founding guitarist James Iha for a performance in Los Angeles. The March 26 concert saw the band play stripped-down, acoustic versions of many songs from its 1993 record, Siamese Dream

Iha, who celebrated his 48th birthday Saturday night, was toasted by the crowd as frontman Billy Corgan lead the audience in a rendition of "Happy Birthday." Watch fan-shot video of the charade above. 

While much of the last decade has been plagued with lawsuits and drama for the Pumpkins, last night's reunion in Los Angeles was the first time Iha had joined the group onstage since the year 2000. Rolling Stone brings to mind the band's latest legal precedent, which saw all four original members of the group threaten to sue whoever had leaked a few of its original demos. D’arcy Wretzky—founding bass player of the group—was mentioned as a participant in the latest legal threat but hasn't performed with the Pumpkins since 1999. 

The group's lineup from Saturday night, which included Corgan, Iha, Jimmy Chamberlin and Jeff Schroeder, was photographed after the concert looking content.