Katy Perry & John Mayer Split? Pop Star Spotted With Muse Drummer; Rocker Spotted With Girls Star Allison Williams

Katy Perry and John Mayer are seen at the inauguration for U.S. President Barack Obama's second term of office in Washington D.C. on January 21, 2013 Katy Perry and John Mayer are seen at the inauguration for U.S. President Barack Obama's second term of office in Washington D.C. on January 21, 2013

It appears the Inauguration honeymoon for Katy Perry and John Mayer is over!

After attending President Obama’s second Inauguration together earlier this month, reports are surfacing that the music couple are no longer singing each other’s praises.

According to Life & Style, Katy showed up at an after party for Muse in Los Angeles earlier this week and was spotted getting cozy with the band’s drummer Dominic Howard.

“They were all over each other,” an eyewitness told the mag. “I was shocked to see her acting so affectionate with another rock star because I thought she was dating John Mayer.”

And the encounter reportedly got very affectionate.

“Katy had her arms around Dominic, and they were facing each other, bodies touching,” the eyewitness claimed. “He had his eyes on her all night. Katy loved all the attention.”

John has also reportedly moved on with a new girl – “Girls” star Allison Williams.

According to a Daily Mail source, the rocker and the actress were seen last Friday at an event at New York’s Jane Hotel and “walked in together and separated to talk to respective friends.”

Adding, “They then made their way back to each other, and John had his arm around Allison’s waist. They were talking together for a bit before leaving.”

Allison and John reportedly then left the event together and then headed to dinner in the West Village.

-- Jesse Spero

Copyright 2014 by NBC Universal, Inc. All rights reserved.
This material may not be published, broadcast, rewritten or redistributed.