Avril Lavigne and Chad Kroeger seem to be giving their marriage a second try.
They separated last September, but showed up arm in arm Sunday night at Clive Davis' annual pre-Grammy party in Beverly Hills and stopped to pose for pics together.
Avril and Chad announced their split, but never officially filed for divorce ... and then dropped a hint back in December they were on the road to reconciliation.
Also ... apologies for planting that song in your head. Earworms are a bitch.
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