This Form 4 is jointly filed by (i) YFA, (ii) YF ART Holdings GP, LLC ("YFA GP"), (iii) Yucaipa American Alliance Fund I, LP ("YAAF I"), (iv) Yucaipa American Alliance Fund I, LLC ("YAAF I LLC"), (v) Yucaipa American Funds, LLC ("Yucaipa American Funds"), (vi) Yucaipa American Management, LLC ("Yucaipa American" and, together with YFA, YFA GP, YAAF I, YAAF I LLC, and Yucaipa American Funds, the "Yucaipa Entities"), and (vii) Ronald W. Burkle. YFA GP is the general partner of YFA. YAAF I is the managing member of YFA GP. YAAF I LLC is the general partner of YAAF I. Yucaipa American Funds is the managing member of YAAF I LLC. Yucaipa American is the managing member of Yucaipa American Funds. Mr. Burkle is the managing member of Yucaipa American. Each of Mr. Burkle, YFA GP, YAAF I, YAAF I LLC, Yucaipa American Funds, and Yucaipa American, by virtue of their direct or indirect control of YFA, may be deemed to beneficially own some or all of the securities reported as being held by YFA. Each of the reporting persons hereunder disclaims beneficial ownership of the reported securities except to the extent of its or his pecuniary interest therein. This Form 4 shall not be deemed to be an admission that any reporting person hereunder is the beneficial owner of any of the reported securities for purposes of Section 16, or for any other purpose.