Brit Was a No Show at Her Depo

TMZ has learned Britney Spears' deposition was scheduled today and she didn't show -- again!

If we're counting correctly, this is the fifth time her scheduled deposition in the custody case didn't happen. Last month, Britney claimed she was too ill to sit for her depo, yet TMZ caught her out partying that same night.

Sources say the fact that she didn't show for the depo was a factor in her lawyers' decision to file papers today asking to withdraw as counsel, but it was only one of many reasons. As one connected source put it, "Her whole life has become insane and it's impossible for anyone to get through to her."