In this picture provided by the Vatican newspaper L'Osservatore Romano, Pope Francis, right, is flanked by Vatican Almoner Archbishop Konrad Krajewski as he welcomes four men at the Vatican, Tuesday, Dec. 17, 2013. Four homeless people, one of them bringing his dog, helped Pope Francis celebrate his 77th birthday at the Vatican Tuesday. They live on the street in the Rome neighborhood just outside the Holy See's walls and were invited by the Vatican official in charge of alms-giving to attend the morning Mass which Francis celebrates daily at the hotel where he lives on Vatican City grounds, the Vatican said. One of the men held his dog as he was presented to Francis after the guests chatted following Mass. The Vatican also said Francis invited his household help to join him in a "family-like" atmosphere, and he spoke of them one by one during his homily. (AP Photo/L'Osservatore Romano)