Foreign Key Exception on Id when attempting to insert

System.Exception: Microsoft.Data.SqlClient.SqlException The INSERT statement conflicted with the FOREIGN KEY constraint "FK_video_genre_videos". The conflict occurred in database "BlockBusters", table "dbo.videos", column 'id'.
      The statement has been terminated.

// Attempt to create a link in the join table at [dbo].[video_genres].
foreach (var genre in genres)
{
    if (videoData.Genres != null)
    {
        foreach (var g in videoData.Genres)
        {
            if (g.Genre == genre.Name)
            {
                // Insert the list we created for the videoGenres to the [dbo].[video_genres].
                using (SqlCommand command = new SqlCommand(insertQueryVideoGenres, connection, transaction))
                {
                    command.Parameters.AddWithValue("@VideoId", video.Id);
                    command.Parameters.AddWithValue("@GenreId", genre.Id);
                    command.ExecuteScalar();
                };
            }
        }
    }
}

CREATE TABLE [dbo].[video_genres] (
    [id]       INT IDENTITY (1, 1) NOT NULL,
    [video_id] INT NOT NULL,
    [genre_id] INT NOT NULL,
    CONSTRAINT [PK_video_genre] PRIMARY KEY CLUSTERED ([id] ASC),
    CONSTRAINT [FK_video_genre_genres] FOREIGN KEY ([genre_id]) REFERENCES [dbo].[genres] ([id]),
    CONSTRAINT [FK_video_genre_videos] FOREIGN KEY ([video_id]) REFERENCES [dbo].[videos] ([id])
);