diff --git a/docs/index.md b/docs/index.md
index a85882b..3554f9b 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -111,9 +111,47 @@ This will create the app structure for us. Something similar to this below:
 
 Now the next step is create the models we are going to use in our API to represent the domain models.
 
-- 🎬 Lecture : Fundamentals of Django models.
-- 💻 Exercise : Hands-on creation and manipulation of models.
-- 💡 Purpose: Understanding data handling in Django.
+We are going to create 3 models in the file models.py
+
+1. Artist
+2. Album
+3. Song
+
+Let's start with the artist model.
+
+```python
+class Artist(models.Model):
+    name = models.CharField(max_length=100)
+
+    def __str__(self):
+        return self.name
+```
+
+Don't forget to import the models
+```python
+from django.db import models
+```
+Now the album model
+```python
+class Album(models.Model):
+    title = models.CharField(max_length=100)
+    artist = models.ForeignKey(Artist, on_delete=models.CASCADE)
+    release_year = models.IntegerField()
+
+    def __str__(self):
+        return self.title
+```
+
+the last model will be the song model that will have relationship with artist and album.
+
+```python
+class Song(models.Model):
+    author = models.CharField(max_length=100)
+    title = models.CharField(max_length=100)
+    artist = models.ForeignKey(Artist, on_delete=models.CASCADE)  # Artist or band name
+    album = models.ForeignKey(Album, on_delete=models.CASCADE)  # Album the song belongs to
+    duration = models.IntegerField()  # Duration of the song in seconds
+```
 
 ## URL Mapping and Views
 
diff --git a/first_api/music/models.py b/first_api/music/models.py
index 71a8362..03b7f4c 100644
--- a/first_api/music/models.py
+++ b/first_api/music/models.py
@@ -1,3 +1,25 @@
 from django.db import models
 
-# Create your models here.
+
+class Artist(models.Model):
+    name = models.CharField(max_length=100)
+
+    def __str__(self):
+        return self.name
+
+
+class Album(models.Model):
+    title = models.CharField(max_length=100)
+    artist = models.ForeignKey(Artist, on_delete=models.CASCADE)
+    release_year = models.IntegerField()
+
+    def __str__(self):
+        return self.title
+
+
+class Song(models.Model):
+    author = models.CharField(max_length=100)
+    title = models.CharField(max_length=100)
+    artist = models.ForeignKey(Artist, on_delete=models.CASCADE)  # Artist or band name
+    album = models.ForeignKey(Album, on_delete=models.CASCADE)  # Album the song belongs to
+    duration = models.IntegerField()  # Duration of the song in seconds