Exhibit
23.3
Consent
of Independent Auditors
We
consent to the reference to our firm under the caption “Experts” in the
Registration Statement (Form S-3) and related Prospectus of GHL Acquisition
Corp. for the registration of $200,000,000 of its common stock, preferred stock
and debt securities and to the incorporation by reference therein of our report
dated February 23, 2009, with respect to the consolidated financial statements
of Iridium Holdings LLC as of December 31, 2008 and 2007 and for each of the
three years in the period ended December 31, 2008, included in GHL Acquisition
Corp.’s Preliminary Proxy Statement on Schedule 14A, filed with the Securities
and Exchange Commission on April 29, 2009.
/s/ Ernst
& Young LLP
McLean,
Virginia
June 1,
2009