How many studio albums has Led Zeppelin released?
9
7
7
7
7
7
7
7
5
7
5
4
12
8
7
5
4
12
8
7
5
6
4
12
8
7
5
6
4
12
8
7
5
6
3
4
13
10
12
8
7
5
6
3
4
13
10
12
8
7
5
6
11
3
4
13
10
12
8
7
5
6
11
3
4
13
10
12
8
7
5
6
11
3
4
13
10
12
8
7
5
6
9
11
3
4
13
10
12
8
7
5
14
6
9
11
3
4
13
10
12
8
7
5
14
6
9
11
3
4
13
10
12
8
7
5
14
6
9
11
3
4
13
10
12
8
5
14
6
9
11
3
2
4
13
10
12
8
5
14
6
9
11
3
2
4
13
10
12
8
5
14
6
9
11
3
2
4
13
10
12
8
5
14
6
9
11
3
2
4
13
10
12
8
5
14
6
9
11
3
2
4
13
10
12
8
5
14
6
9
11
3
2
1
4
13
10
12
8
14
6