mixed up with

It must have got mixed up with something and it's only surfaced now.

Not everything they wrote was as unguarded as “Sweet Dreams” or “High Road”: In the very funny “Leigh,” which plays like a riff on George Strait’s classic “All My Ex’s Live in Texas,” Wetzel considers moving to Memphis to avoid getting mixed up with women whose names end in “-leigh.”

Crucially, Ms. Oropesa noted, Callas became the story herself — a “hot-topic, controversial figure” — after her life became mixed up with those of Onassis and Kennedy.

Her art books had become mixed up with items her family were sending to a charity shop, during a clear-out.

Donald Trump seemed Monday to get Christmas mixed up with Festivus.