Have singer Avril Lavigne and ex-husband Chad Kroeger, lead vocalist of Nickelback, reconciled after five months of separation?

GossipCop.com said Monday that, while debunking a tabloid report last week claiming Lavigne was dating singer Ryan Cabrera, an anonymous source told the site Lavigne and Kroeger were back together, adding that the two would attend the Grammy Awards on Monday as a couple. As well, Lavigne, 31, posted images of herself and Kroeger, 41, smiling at their table at music mogul Clive Davis’ annual pre-Grammy event in Beverly Hills on Sunday.

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“Grammy Party ..... Feeling great. Lovely night,” the singer, whose hits include “Girlfriend” and 2013’s platinum single “Here’s to Never Growing Up,” posted on social media, accompanying an image of herself and Kroeger happily together. Later that night she posted another smiling image of the two, who additionally were photographed together on the red carpet.

On Sept. 2, Lavigne had announced an amicable separation with Kroeger, who she had married on July 1, 2013, at the medieval Chateau La Napoule in Mandelieu, France, after becoming engaged the previous August.

This was Kroeger’s first marriage and her second. Lavigne had been married to Sum 41 singer-guitarist Deryck Whibley from July 2006 until separating in September 2009; their divorce was finalized just over a year later.