Katy Perry, John Mayer Split... Again!

Katy Perry and John Mayer's on-again/off-again relationship is, once again, off.

The music superstars have split after a second stint of dating - this time around, they lasted for seven months.
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Katy, 28, and John, 35, previously dated during summer of 2012, before splitting (for the first time) in August 2012.
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The news of the breakup comes just a few weeks after the often-outspoken John opened up to "CBS Sunday Morning" about his relationship with the "Firework" pop star.
"For the first time in my life I don't feel like I'm in a celebrity relationship. I really don't," John said in February. "For me it feels like something that's very human."
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During their second go-around, Katy and John made no attempts to hide their love for each other, often spotted out and about together in public and posting photos of themselves in numerous online shots.
The couple was affectionate towards each other during Clive Davis' annual pre-Grammy gala and Katy & John were photographed together attending President Barack Obama's inauguration in Washington, DC.
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Katy and John first began dating after her divorce from Russell Brand, which was finalized in February 2012.
Sources confirmed the news of Katy and John's split to People and Us Weekly.
-- Eric Anderson

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Ryan Seacrest and Julianne Hough have decided to pull the plug on their relationship after more than two years of dating, sources confirm to Us .

And the notoriously busy Hollywood pair, who began dating in 2010, may have their packed schedules to blame.

Julianne Hough and Ryan Seacrest attend the "Rock Of Ages" Los Angeles premiere after party held at Grauman's Chinese Theatre on June 8, 2012 in Hollywood, California.
Credit: Lester Cohen/WireImage.com

"Honestly, their schedules were too hectic," a source tells Us. "It just got to be too much. I think they both just sort of knew they couldn't do it anymore. The travel and lifestyle got to be too much. Who knows if this is just for now, but I think this is for good."

In addition to hosting American Idol, Seacrest, 38, is also a radio host for his own show, On Air With Ryan Seacrest, as well as a red carpet host.

His 24-year-old love is similarly busy, promoting her latest flick Safe Haven, opposite Josh Duhamel, out in theaters just last month. She and brother Derek Hough, 27, are also currently collaborating on a Starz scripted drama about ballroom dance, titled Blackpool.

Last month, the former Dancing With the Stars pro dancer revealed that her Valentine's Day plans with Seacrest were going to be last-minute.

"I know there are plans, but I don't know what they are yet," she told Us in February. "I think I might be traveling. I'm not sure where. That's up to my boyfriend!"