Cher 's deadbeat son, Elijah Blue Allman , is set to beg his I Got You Babe mommy to bail him out to the tune of $26,000.

Court documents reviewed by RadarOnline.com show the drug-challenged musician owes the dough to his estranged wife, Marieangela King, for failing to fork over $16,000 in back spousal support and $10,000 in legal fees pending the outcome of their divorce. Article continues below advertisement

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"Elijah has been burning through his trust fund cash for years now, and the word is that he's broke as a joke," an insider told RadarOnline.com .

"He's got no real way of paying this money, so g

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