Here is the global list (75,000+ instead of 73,000+) showing only the confirmed results from Billboard Boxscore:
01. Luciano Ligabue - 2005 - Reggio Emilia, IT - Festival Grounds - 165,264
02. U2 - 1997 - Reggio Emilia, IT - Festival Grounds - 150,000
03. Rolling Stones - 1995 - Prague, CZ - Strahov Stadium - 126,742
04. Grateful Dead - 1977 - English Town, NJ - Race Way Park - 107,019
05. U2 - 2009 - Los Angeles, CA - Rose Bowl - 97,014
06. U2 - 2010 - Paris, FR - Stade de France - 96,540
07. AC/DC - 2010 - Wels, AT - Flughafen - 94,838
08. U2 - 2011 - Johannesburg, RSA - Soccer City Stadium - 94,232
09. U2 - 2009 - Paris, FR - Stade de France - 93,272 (average of 2 shows)
10. Rolling Stones - 1998 - Nürnberg, DE - Zeppelinfeld - 91,590
11. The Who - 1982 - Philadelphia, PA - JFK Stadium - 91,451
12. AC/DC - 2009 - Hockenheim, DE - Hockenheimring - 91,312
13. U2 - 2009 - Barcelona, ES - Camp Nou - 91,028 (average of 2 shows)
14. Rolling Stones - 1995 - Hockenheim, DE - Hockenheimring - 90,871
15. Rolling Stones - 1981 - Philadelphia, PA - JFK Stadium - 90,782 (average of 2 shows)
16. Rolling Stones - 1989 - Los Angeles, CA - LA Memorial Coliseum - 90,017 (average of 2 shows)
17. Rolling Stones - 1998 - Hamburg, DE - Trabrennbahn - 90,000
18. Rolling Stones - 1995 - Wolfsburg, DE - VW Festival Site - 90,000
19. Elton John - 1992 - Mexico-City, MX - Azteca Stadium - 90,000 (average of 2 shows)
20. Rolling Stones - 1998 - Hanover, DE - Expogelände - 89,963
21. U2 - 2011 - Sao Paulo, BR - Morumbi - 89,831 (average of 3 shows)
22. Rolling Stones - 2005 - Moncton, CAN - Magnetic Hill Concert Side - 89,260
23. U2 - 2009 - Berlin, DE - Olympiastadion - 88,265
24. Rolling Stones - 1981 - New Orleans, LA - Superdome - 87,500
25. Rolling Stones - 1995 - Zeltweg, AT - Österreichring - 86,470
26. U2 - 1987 - Philadelphia, PA - JFK Stadium - 86,145
27. Red Hot Chili Peppers - 2004 - London, UK - Hyde Park - 86,000 (average of 3 shows)
28. Rolling Stones - 1998 - Den Haag NL - Malieveld - 86,000
29. Rolling Stones - 1998 - Mannheim, DE - Maimarkt - 85,613
30. Madonna - 2009 - Helsinki, FI - West Harbour - 85,354
31. Madonna - 2006 - Horsens, DK - Forum Horsens - 85,232
32. Michael Jackson - 1997 - Hockenheim, DE - Hockenheimring - 85,000
33. Bon Jovi - 2003 - London, UK - Hyde Park - 85,000
34. Rolling Stones - 1995 - Schuttdorf, DE - Festival Grounds - 84,896
35. U2 - 2009 - Washington, DC - Fedex Field - 84,754
36. U2 - 2009 - East Rutherford, NJ - Giants Stadium - 84,472
37. Rolling Stones - 2006 - Horsens, DK - Forum Horsens - 84,088
38. Journey - 1982 - Los Angeles, CA - Rose Bowl - 83,214
39. Rolling Stones - 1995 - Leipzig, DE - Festwiese - 83,105
40. Bruce Springsteen - 1985 - Los Angeles, CA - LA Memorial Coliseum - 82,973 (average of 4 shows)
41. U2 - 2010 - Athens, GR - OAKA Stadium - 82,662
42. U2 - 2005 - Dublin, IR - Croke Park - 82,248 (average of 3 shows)
43. U2 - 2009 - London, UK - Wembley Stadium - 82,122 (average of 3 shows)
44. The Police - 2007 - Dublin, IR - Croke Park - 81,640
45. Bon Jovi - 2006 - Dublin, IR - Croke Park - 81,327
46. U2 - 2005 - Barcelona, ES - Camp Nou - 81,269
47. U2 - 2009 - Dublin, IR - Croke Park - 81,066 (average of 3 shows)
48. R.E.M. - 2005 - London, UK - Hyde Park - 80,852
49. Pink Floyd - 1987 - Philadelphia, PA - JFK Stadium - 80,754
50. Rolling Stones - 1995 - Paris, FR - Longchamps - 80,303 (average of 2 shows)
51. U2 - 2005 - Paris, FR - Stade de France - 80,175 (average of 2 shows)
52. The Who - 1982 - Buffalo, NY - Rich Stadium - 80,000
53. Rolling Stones - 1998 - Athens, GR - OAKA Stadium - 79,446
54. Madonna - 2008 - Warsaw, PL - Bremowo Airport - 79,343
55. AC/DC - 2010 - Hanover, DE - Expogelände - 79,273
56. The Police - 2007 - Paris, FR - Stade de France - 78,953 (average of 2 shows)
57. U2 - 2001 - Dublin, IR - Slane Castle - 78,709 (average of 2 shows)
58. Michael Jackson - 1997 - Berlin, DE - Olympiastadion - 78,187
59. Rolling Stones - 1995 - Mannheim, DE - Maimarkt - 78,034
60. R.E.M. - 1995 - Dublin, IR - Slane Castle - 78,000
61. Rolling Stones - 1981 - Dallas, TX - Cotton Bowl - 78,000 (average of 2 shows)
62. Take That - 2009 - Dublin, IR - Croke Park - 77,988
63. U2 - 2011 - Santiago, CL - Estadio Nacional - 77,765
64. U2 - 2005 - Munich, DE - Olympiastadion - 77,435
65. U2 - 2006 - Santiago, CL - Estadio Nacional - 77,345
66. U2 - 2009 - East Rutherford, NJ - Giants Stadium - 77,338
67. Westlife - 2008 - Dublin, IR - Croke Park - 77,099
68. U2 - 1998 - Sao Paulo, BR - Morumbi - 77,028 (average of 2 shows)
69. U2 - 2009 - Milan, IT - San Siro - 76,902 (average of 2 shows)
70. Aerosmith - 1976 - Detroit, MI - Pontiac Silverdome - 76,900
71. Rolling Stones - 1998 - Zagreb, HR - Zagreb Hyppodrome - 76,755
72. Rolling Stones - 1998 - Paris, DE - Stade de France - 76,716
73. Rolling Stones - 1995 - Berlin, DE - Olympiastadion - 76,689
74. Black Eyed Peas - 2010 - Mexico-City, MX - Azteca Stadium - 76,458
75. AC/DC - 2010 - Paris, FR - Stade de France - 76,375
76. Led Zeppelin - 1977 - Detroit, MI - Pontiac Silverdome - 76,229
77. U2 - 2010 - Sevilla, ES - Estadio Olimpico - 76,159
78. U2 - 2010 - Munich, DE - Olympiastadion - 76,150
79. The Who - 1975 - Detroit, MI - Pontiac Silverdome - 75,962
80. U2 - 2010 - Rome, IT - Stadio Olimpico - 75,847
81. Madonna - 2009 - Athens, GR - OAKA Stadium - 75,637
82. Rolling Stones - 2003 - Paris, FR - Stade de France - 75,517
83. Pink Floyd - 1994 - Columbus, OH - State University Stadium - 75,250
84. U2 - 2006 - Buenos Aires, ARG - River Plate Stadium - 75,212 (average of 2 shows)
85. U2 - 2009 - Chorzow, PL - Stadion Slaski - 75,180
86. Madonna - 2008 - Lisbon, POR - Parque de Bela Vista - 75,000
87. Michael Jackson - 1996 - Talinn, EST - Festival Grounds - 75,000